20456445290

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{397}}^1\times {\mathrm{1153}}^1$

素因数の和:1707

約数の個数: 64

約数和(自身を含む): 38194722720

約数和(自身を除く): 17738277430

約数列:

[1, 2, 5, 10, 41, 82, 109, 205, 218, 397, 410, 545, 794, 1090, 1153, 1985, 2306, 3970, 4469, 5765, 8938, 11530, 16277, 22345, 32554, 43273, 44690, 47273, 81385, 86546, 94546, 125677, 162770, 216365, 236365, 251354, 432730, 457741, 472730, 628385, 915482, 1256770, 1774193, 2288705, 3548386, 4577410, 5152757, 8870965, 10305514, 17741930, 18767381, 25763785, 37534762, 49893769, 51527570, 93836905, 99787538, 187673810, 249468845, 498937690, 2045644529, 4091289058, 10228222645, 20456445290]

約数ペア:

[(1, 20456445290), (2, 10228222645), (5, 4091289058), (10, 2045644529), (41, 498937690), (82, 249468845), (109, 187673810), (205, 99787538), (218, 93836905), (397, 51527570), (410, 49893769), (545, 37534762), (794, 25763785), (1090, 18767381), (1153, 17741930), (1985, 10305514), (2306, 8870965), (3970, 5152757), (4469, 4577410), (5765, 3548386), (8938, 2288705), (11530, 1774193), (16277, 1256770), (22345, 915482), (32554, 628385), (43273, 472730), (44690, 457741), (47273, 432730), (81385, 251354), (86546, 236365), (94546, 216365), (125677, 162770)]