20575445488

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3190981}}^1$

素因数の和:3191033

約数の個数: 40

約数和(自身を含む): 44316358016

約数和(自身を除く): 23740912528

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 6448, 3190981, 6381962, 12763924, 25527848, 41482753, 51055696, 82965506, 98920411, 165931012, 197840822, 331862024, 395681644, 663724048, 791363288, 1285965343, 1582726576, 2571930686, 5143861372, 10287722744, 20575445488]

約数ペア:

[(1, 20575445488), (2, 10287722744), (4, 5143861372), (8, 2571930686), (13, 1582726576), (16, 1285965343), (26, 791363288), (31, 663724048), (52, 395681644), (62, 331862024), (104, 197840822), (124, 165931012), (208, 98920411), (248, 82965506), (403, 51055696), (496, 41482753), (806, 25527848), (1612, 12763924), (3224, 6381962), (6448, 3190981)]