31965975

素因数分解:

$3^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:142

約数の個数: 96

約数和(自身を含む): 64281600

約数和(自身を除く): 32315625

約数列:

[1, 3, 5, 9, 15, 23, 25, 27, 29, 45, 69, 71, 75, 87, 115, 135, 145, 207, 213, 225, 261, 345, 355, 435, 575, 621, 639, 667, 675, 725, 783, 1035, 1065, 1305, 1633, 1725, 1775, 1917, 2001, 2059, 2175, 3105, 3195, 3335, 3915, 4899, 5175, 5325, 6003, 6177, 6525, 8165, 9585, 10005, 10295, 14697, 15525, 15975, 16675, 18009, 18531, 19575, 24495, 30015, 30885, 40825, 44091, 47357, 47925, 50025, 51475, 55593, 73485, 90045, 92655, 122475, 142071, 150075, 154425, 220455, 236785, 277965, 367425, 426213, 450225, 463275, 710355, 1102275, 1183925, 1278639, 1389825, 2131065, 3551775, 6393195, 10655325, 31965975]

約数ペア:

[(1, 31965975), (3, 10655325), (5, 6393195), (9, 3551775), (15, 2131065), (23, 1389825), (25, 1278639), (27, 1183925), (29, 1102275), (45, 710355), (69, 463275), (71, 450225), (75, 426213), (87, 367425), (115, 277965), (135, 236785), (145, 220455), (207, 154425), (213, 150075), (225, 142071), (261, 122475), (345, 92655), (355, 90045), (435, 73485), (575, 55593), (621, 51475), (639, 50025), (667, 47925), (675, 47357), (725, 44091), (783, 40825), (1035, 30885), (1065, 30015), (1305, 24495), (1633, 19575), (1725, 18531), (1775, 18009), (1917, 16675), (2001, 15975), (2059, 15525), (2175, 14697), (3105, 10295), (3195, 10005), (3335, 9585), (3915, 8165), (4899, 6525), (5175, 6177), (5325, 6003)]