81257904

素因数分解:

$2^4\times 3^4\times 7^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1$

素因数の和:106

約数の個数: 300

約数和(自身を含む): 296539056

約数和(自身を除く): 215281152

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 27, 28, 36, 39, 42, 48, 52, 53, 54, 56, 63, 72, 78, 81, 84, 91, 104, 106, 108, 112, 117, 126, 144, 156, 159, 162, 168, 169, 182, 189, 208, 212, 216, 234, 252, 273, 312, 318, 324, 336, 338, 351, 364, 371, 378, 424, 432, 468, 477, 504, 507, 546, 567, 624, 636, 648, 676, 689, 702, 728, 742, 756, 819, 848, 936, 954, 1008, 1014, 1053, 1092, 1113, 1134, 1183, 1272, 1296, 1352, 1378, 1404, 1431, 1456, 1484, 1512, 1521, 1638, 1872, 1908, 2028, 2067, 2106, 2184, 2226, 2268, 2366, 2457, 2544, 2704, 2756, 2808, 2862, 2968, 3024, 3042, 3276, 3339, 3549, 3816, 4056, 4134, 4212, 4293, 4368, 4452, 4536, 4563, 4732, 4823, 4914, 5512, 5616, 5724, 5936, 6084, 6201, 6552, 6678, 7098, 7371, 7632, 8112, 8268, 8424, 8586, 8904, 8957, 9072, 9126, 9464, 9646, 9828, 10017, 10647, 11024, 11448, 12168, 12402, 13104, 13356, 13689, 14196, 14469, 14742, 16536, 16848, 17172, 17808, 17914, 18252, 18603, 18928, 19292, 19656, 20034, 21294, 22896, 24336, 24804, 26712, 26871, 27378, 28392, 28938, 29484, 30051, 31941, 33072, 34344, 35828, 36504, 37206, 38584, 39312, 40068, 42588, 43407, 49608, 53424, 53742, 54756, 55809, 56784, 57876, 58968, 60102, 62699, 63882, 68688, 71656, 73008, 74412, 77168, 80136, 80613, 85176, 86814, 95823, 99216, 107484, 109512, 111618, 115752, 117936, 120204, 125398, 127764, 130221, 143312, 148824, 160272, 161226, 170352, 173628, 188097, 191646, 214968, 219024, 223236, 231504, 240408, 241839, 250796, 255528, 260442, 297648, 322452, 347256, 376194, 383292, 390663, 429936, 446472, 480816, 483678, 501592, 511056, 520884, 564291, 644904, 694512, 725517, 752388, 766584, 781326, 892944, 967356, 1003184, 1041768, 1128582, 1289808, 1451034, 1504776, 1533168, 1562652, 1692873, 1934712, 2083536, 2257164, 2902068, 3009552, 3125304, 3385746, 3869424, 4514328, 5078619, 5804136, 6250608, 6771492, 9028656, 10157238, 11608272, 13542984, 20314476, 27085968, 40628952, 81257904]

約数ペア:

[(1, 81257904), (2, 40628952), (3, 27085968), (4, 20314476), (6, 13542984), (7, 11608272), (8, 10157238), (9, 9028656), (12, 6771492), (13, 6250608), (14, 5804136), (16, 5078619), (18, 4514328), (21, 3869424), (24, 3385746), (26, 3125304), (27, 3009552), (28, 2902068), (36, 2257164), (39, 2083536), (42, 1934712), (48, 1692873), (52, 1562652), (53, 1533168), (54, 1504776), (56, 1451034), (63, 1289808), (72, 1128582), (78, 1041768), (81, 1003184), (84, 967356), (91, 892944), (104, 781326), (106, 766584), (108, 752388), (112, 725517), (117, 694512), (126, 644904), (144, 564291), (156, 520884), (159, 511056), (162, 501592), (168, 483678), (169, 480816), (182, 446472), (189, 429936), (208, 390663), (212, 383292), (216, 376194), (234, 347256), (252, 322452), (273, 297648), (312, 260442), (318, 255528), (324, 250796), (336, 241839), (338, 240408), (351, 231504), (364, 223236), (371, 219024), (378, 214968), (424, 191646), (432, 188097), (468, 173628), (477, 170352), (504, 161226), (507, 160272), (546, 148824), (567, 143312), (624, 130221), (636, 127764), (648, 125398), (676, 120204), (689, 117936), (702, 115752), (728, 111618), (742, 109512), (756, 107484), (819, 99216), (848, 95823), (936, 86814), (954, 85176), (1008, 80613), (1014, 80136), (1053, 77168), (1092, 74412), (1113, 73008), (1134, 71656), (1183, 68688), (1272, 63882), (1296, 62699), (1352, 60102), (1378, 58968), (1404, 57876), (1431, 56784), (1456, 55809), (1484, 54756), (1512, 53742), (1521, 53424), (1638, 49608), (1872, 43407), (1908, 42588), (2028, 40068), (2067, 39312), (2106, 38584), (2184, 37206), (2226, 36504), (2268, 35828), (2366, 34344), (2457, 33072), (2544, 31941), (2704, 30051), (2756, 29484), (2808, 28938), (2862, 28392), (2968, 27378), (3024, 26871), (3042, 26712), (3276, 24804), (3339, 24336), (3549, 22896), (3816, 21294), (4056, 20034), (4134, 19656), (4212, 19292), (4293, 18928), (4368, 18603), (4452, 18252), (4536, 17914), (4563, 17808), (4732, 17172), (4823, 16848), (4914, 16536), (5512, 14742), (5616, 14469), (5724, 14196), (5936, 13689), (6084, 13356), (6201, 13104), (6552, 12402), (6678, 12168), (7098, 11448), (7371, 11024), (7632, 10647), (8112, 10017), (8268, 9828), (8424, 9646), (8586, 9464), (8904, 9126), (8957, 9072)]