20987112964

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{61613}}^1$

素因数の和:61756

約数の個数: 48

約数和(自身を含む): 39417186816

約数和(自身を除く): 18430073852

約数列:

[1, 2, 4, 31, 41, 62, 67, 82, 124, 134, 164, 268, 1271, 2077, 2542, 2747, 4154, 5084, 5494, 8308, 10988, 61613, 85157, 123226, 170314, 246452, 340628, 1910003, 2526133, 3820006, 4128071, 5052266, 7640012, 8256142, 10104532, 16512284, 78310123, 127970201, 156620246, 169250911, 255940402, 313240492, 338501822, 511880804, 677003644, 5246778241, 10493556482, 20987112964]

約数ペア:

[(1, 20987112964), (2, 10493556482), (4, 5246778241), (31, 677003644), (41, 511880804), (62, 338501822), (67, 313240492), (82, 255940402), (124, 169250911), (134, 156620246), (164, 127970201), (268, 78310123), (1271, 16512284), (2077, 10104532), (2542, 8256142), (2747, 7640012), (4154, 5052266), (5084, 4128071), (5494, 3820006), (8308, 2526133), (10988, 1910003), (61613, 340628), (85157, 246452), (123226, 170314)]