81506106.000000000

素因数分解:

$2^3\times 3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2411}}^1$

素因数の和:2449

約数の個数: 160

約数和(自身を含む): 490311360

約数和(自身を除く): 348139512

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 18, 21, 24, 26, 27, 28, 36, 39, 42, 52, 54, 56, 63, 72, 78, 81, 84, 91, 104, 108, 117, 126, 156, 162, 168, 182, 189, 216, 234, 252, 273, 312, 324, 351, 364, 378, 468, 504, 546, 567, 648, 702, 728, 756, 819, 936, 1053, 1092, 1134, 1404, 1512, 1638, 2106, 2184, 2268, 2411, 2457, 2808, 3276, 4212, 4536, 4822, 4914, 6552, 7233, 7371, 8424, 9644, 9828, 14466, 14742, 16877, 19288, 19656, 21699, 28932, 29484, 31343, 33754, 43398, 50631, 57864, 58968, 62686, 65097, 67508, 86796, 94029, 101262, 125372, 130194, 135016, 151893, 173592, 188058, 195291, 202524, 219401, 250744, 260388, 282087, 303786, 376116, 390582, 405048, 438802, 455679, 520776, 564174, 607572, 658203, 752232, 781164, 846261, 877604, 911358, 1128348, 1215144, 1316406, 1367037, 1562328, 1692522, 1755208, 1822716, 1974609, 2256696, 2538783, 2632812, 2734074, 3385044, 3645432, 3949218, 5077566, 5265624, 5468148, 5923827, 6770088, 7898436, 10155132, 10936296, 11847654, 15796872, 17771481, 20310264, 23695308, 35542962, 47390616, 71085924, 142171848]

約数ペア:

[(1, 142171848), (2, 71085924), (3, 47390616), (4, 35542962), (6, 23695308), (7, 20310264), (8, 17771481), (9, 15796872), (12, 11847654), (13, 10936296), (14, 10155132), (18, 7898436), (21, 6770088), (24, 5923827), (26, 5468148), (27, 5265624), (28, 5077566), (36, 3949218), (39, 3645432), (42, 3385044), (52, 2734074), (54, 2632812), (56, 2538783), (63, 2256696), (72, 1974609), (78, 1822716), (81, 1755208), (84, 1692522), (91, 1562328), (104, 1367037), (108, 1316406), (117, 1215144), (126, 1128348), (156, 911358), (162, 877604), (168, 846261), (182, 781164), (189, 752232), (216, 658203), (234, 607572), (252, 564174), (273, 520776), (312, 455679), (324, 438802), (351, 405048), (364, 390582), (378, 376116), (468, 303786), (504, 282087), (546, 260388), (567, 250744), (648, 219401), (702, 202524), (728, 195291), (756, 188058), (819, 173592), (936, 151893), (1053, 135016), (1092, 130194), (1134, 125372), (1404, 101262), (1512, 94029), (1638, 86796), (2106, 67508), (2184, 65097), (2268, 62686), (2411, 58968), (2457, 57864), (2808, 50631), (3276, 43398), (4212, 33754), (4536, 31343), (4822, 29484), (4914, 28932), (6552, 21699), (7233, 19656), (7371, 19288), (8424, 16877), (9644, 14742), (9828, 14466)]