20306972

素因数分解:

$2^2\times 7^3\times {\mathrm{19}}^2\times {\mathrm{41}}^1$

素因数の和:104

約数の個数: 72

約数和(自身を含む): 44805600

約数和(自身を除く): 24498628

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 41, 49, 76, 82, 98, 133, 164, 196, 266, 287, 343, 361, 532, 574, 686, 722, 779, 931, 1148, 1372, 1444, 1558, 1862, 2009, 2527, 3116, 3724, 4018, 5054, 5453, 6517, 8036, 10108, 10906, 13034, 14063, 14801, 17689, 21812, 26068, 28126, 29602, 35378, 38171, 56252, 59204, 70756, 76342, 103607, 123823, 152684, 207214, 247646, 267197, 414428, 495292, 534394, 725249, 1068788, 1450498, 2900996, 5076743, 10153486, 20306972]

約数ペア:

[(1, 20306972), (2, 10153486), (4, 5076743), (7, 2900996), (14, 1450498), (19, 1068788), (28, 725249), (38, 534394), (41, 495292), (49, 414428), (76, 267197), (82, 247646), (98, 207214), (133, 152684), (164, 123823), (196, 103607), (266, 76342), (287, 70756), (343, 59204), (361, 56252), (532, 38171), (574, 35378), (686, 29602), (722, 28126), (779, 26068), (931, 21812), (1148, 17689), (1372, 14801), (1444, 14063), (1558, 13034), (1862, 10906), (2009, 10108), (2527, 8036), (3116, 6517), (3724, 5453), (4018, 5054)]