20478744

素因数分解:

$2^3\times 3^4\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1$

素因数の和:72

約数の個数: 240

約数和(自身を含む): 71743320

約数和(自身を除く): 51264576

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 13, 17, 18, 22, 24, 26, 27, 33, 34, 36, 39, 44, 51, 52, 54, 66, 68, 72, 78, 81, 88, 99, 102, 104, 108, 117, 132, 136, 143, 153, 156, 162, 169, 187, 198, 204, 216, 221, 234, 264, 286, 297, 306, 312, 324, 338, 351, 374, 396, 408, 429, 442, 459, 468, 507, 561, 572, 594, 612, 648, 663, 676, 702, 748, 792, 858, 884, 891, 918, 936, 1014, 1053, 1122, 1144, 1188, 1224, 1287, 1326, 1352, 1377, 1404, 1496, 1521, 1683, 1716, 1768, 1782, 1836, 1859, 1989, 2028, 2106, 2244, 2376, 2431, 2574, 2652, 2754, 2808, 2873, 3042, 3366, 3432, 3564, 3672, 3718, 3861, 3978, 4056, 4212, 4488, 4563, 4862, 5049, 5148, 5304, 5508, 5577, 5746, 5967, 6084, 6732, 7128, 7293, 7436, 7722, 7956, 8424, 8619, 9126, 9724, 10098, 10296, 11016, 11154, 11492, 11583, 11934, 12168, 13464, 13689, 14586, 14872, 15147, 15444, 15912, 16731, 17238, 17901, 18252, 19448, 20196, 21879, 22308, 22984, 23166, 23868, 25857, 27378, 29172, 30294, 30888, 31603, 33462, 34476, 35802, 36504, 40392, 43758, 44616, 46332, 47736, 50193, 51714, 54756, 58344, 60588, 63206, 65637, 66924, 68952, 71604, 77571, 87516, 92664, 94809, 100386, 103428, 109512, 121176, 126412, 131274, 133848, 143208, 150579, 155142, 175032, 189618, 196911, 200772, 206856, 232713, 252824, 262548, 284427, 301158, 310284, 379236, 393822, 401544, 465426, 525096, 568854, 602316, 620568, 758472, 787644, 853281, 930852, 1137708, 1204632, 1575288, 1706562, 1861704, 2275416, 2559843, 3413124, 5119686, 6826248, 10239372, 20478744]

約数ペア:

[(1, 20478744), (2, 10239372), (3, 6826248), (4, 5119686), (6, 3413124), (8, 2559843), (9, 2275416), (11, 1861704), (12, 1706562), (13, 1575288), (17, 1204632), (18, 1137708), (22, 930852), (24, 853281), (26, 787644), (27, 758472), (33, 620568), (34, 602316), (36, 568854), (39, 525096), (44, 465426), (51, 401544), (52, 393822), (54, 379236), (66, 310284), (68, 301158), (72, 284427), (78, 262548), (81, 252824), (88, 232713), (99, 206856), (102, 200772), (104, 196911), (108, 189618), (117, 175032), (132, 155142), (136, 150579), (143, 143208), (153, 133848), (156, 131274), (162, 126412), (169, 121176), (187, 109512), (198, 103428), (204, 100386), (216, 94809), (221, 92664), (234, 87516), (264, 77571), (286, 71604), (297, 68952), (306, 66924), (312, 65637), (324, 63206), (338, 60588), (351, 58344), (374, 54756), (396, 51714), (408, 50193), (429, 47736), (442, 46332), (459, 44616), (468, 43758), (507, 40392), (561, 36504), (572, 35802), (594, 34476), (612, 33462), (648, 31603), (663, 30888), (676, 30294), (702, 29172), (748, 27378), (792, 25857), (858, 23868), (884, 23166), (891, 22984), (918, 22308), (936, 21879), (1014, 20196), (1053, 19448), (1122, 18252), (1144, 17901), (1188, 17238), (1224, 16731), (1287, 15912), (1326, 15444), (1352, 15147), (1377, 14872), (1404, 14586), (1496, 13689), (1521, 13464), (1683, 12168), (1716, 11934), (1768, 11583), (1782, 11492), (1836, 11154), (1859, 11016), (1989, 10296), (2028, 10098), (2106, 9724), (2244, 9126), (2376, 8619), (2431, 8424), (2574, 7956), (2652, 7722), (2754, 7436), (2808, 7293), (2873, 7128), (3042, 6732), (3366, 6084), (3432, 5967), (3564, 5746), (3672, 5577), (3718, 5508), (3861, 5304), (3978, 5148), (4056, 5049), (4212, 4862), (4488, 4563)]