258491865

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:346

約数の個数: 64

約数和(自身を含む): 450489600

約数和(自身を除く): 191997735

約数列:

[1, 3, 5, 15, 19, 53, 57, 95, 109, 157, 159, 265, 285, 327, 471, 545, 785, 795, 1007, 1635, 2071, 2355, 2983, 3021, 5035, 5777, 6213, 8321, 8949, 10355, 14915, 15105, 17113, 17331, 24963, 28885, 31065, 41605, 44745, 51339, 85565, 86655, 109763, 124815, 158099, 256695, 325147, 329289, 474297, 548815, 790495, 906989, 975441, 1625735, 1646445, 2371485, 2720967, 4534945, 4877205, 13604835, 17232791, 51698373, 86163955, 258491865]

約数ペア:

[(1, 258491865), (3, 86163955), (5, 51698373), (15, 17232791), (19, 13604835), (53, 4877205), (57, 4534945), (95, 2720967), (109, 2371485), (157, 1646445), (159, 1625735), (265, 975441), (285, 906989), (327, 790495), (471, 548815), (545, 474297), (785, 329289), (795, 325147), (1007, 256695), (1635, 158099), (2071, 124815), (2355, 109763), (2983, 86655), (3021, 85565), (5035, 51339), (5777, 44745), (6213, 41605), (8321, 31065), (8949, 28885), (10355, 24963), (14915, 17331), (15105, 17113)]