898889290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1\times {\mathrm{431}}^1$

素因数の和:775

約数の個数: 64

約数和(自身を含む): 1781885952

約数和(自身を除く): 882996662

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 263, 305, 431, 526, 610, 793, 862, 1315, 1586, 2155, 2630, 3419, 3965, 4310, 5603, 6838, 7930, 11206, 16043, 17095, 26291, 28015, 32086, 34190, 52582, 56030, 80215, 113353, 131455, 160430, 208559, 226706, 262910, 341783, 417118, 566765, 683566, 1042795, 1133530, 1473589, 1708915, 2085590, 2947178, 3417830, 6914533, 7367945, 13829066, 14735890, 34572665, 69145330, 89888929, 179777858, 449444645, 898889290]

約数ペア:

[(1, 898889290), (2, 449444645), (5, 179777858), (10, 89888929), (13, 69145330), (26, 34572665), (61, 14735890), (65, 13829066), (122, 7367945), (130, 6914533), (263, 3417830), (305, 2947178), (431, 2085590), (526, 1708915), (610, 1473589), (793, 1133530), (862, 1042795), (1315, 683566), (1586, 566765), (2155, 417118), (2630, 341783), (3419, 262910), (3965, 226706), (4310, 208559), (5603, 160430), (6838, 131455), (7930, 113353), (11206, 80215), (16043, 56030), (17095, 52582), (26291, 34190), (28015, 32086)]