20123612912

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1951}}^1\times {\mathrm{2917}}^1$

素因数の和:4906

約数の個数: 80

約数和(自身を含む): 44496652032

約数和(自身を除く): 24373039120

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 1951, 2917, 3536, 3902, 5834, 7804, 11668, 15608, 23336, 25363, 31216, 33167, 37921, 46672, 49589, 50726, 66334, 75842, 99178, 101452, 132668, 151684, 198356, 202904, 265336, 303368, 396712, 405808, 431171, 530672, 606736, 644657, 793424, 862342, 1289314, 1724684, 2578628, 3449368, 5157256, 5691067, 6898736, 10314512, 11382134, 22764268, 45528536, 73983871, 91057072, 96748139, 147967742, 193496278, 295935484, 386992556, 591870968, 773985112, 1183741936, 1257725807, 1547970224, 2515451614, 5030903228, 10061806456, 20123612912]

約数ペア:

[(1, 20123612912), (2, 10061806456), (4, 5030903228), (8, 2515451614), (13, 1547970224), (16, 1257725807), (17, 1183741936), (26, 773985112), (34, 591870968), (52, 386992556), (68, 295935484), (104, 193496278), (136, 147967742), (208, 96748139), (221, 91057072), (272, 73983871), (442, 45528536), (884, 22764268), (1768, 11382134), (1951, 10314512), (2917, 6898736), (3536, 5691067), (3902, 5157256), (5834, 3449368), (7804, 2578628), (11668, 1724684), (15608, 1289314), (23336, 862342), (25363, 793424), (31216, 644657), (33167, 606736), (37921, 530672), (46672, 431171), (49589, 405808), (50726, 396712), (66334, 303368), (75842, 265336), (99178, 202904), (101452, 198356), (132668, 151684)]