20175508908

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{165857}}^1$

素因数の和:166007

約数の個数: 72

約数和(自身を含む): 53127634560

約数和(自身を除く): 32952125652

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 109, 124, 186, 218, 279, 327, 372, 436, 558, 654, 981, 1116, 1308, 1962, 3379, 3924, 6758, 10137, 13516, 20274, 30411, 40548, 60822, 121644, 165857, 331714, 497571, 663428, 995142, 1492713, 1990284, 2985426, 5141567, 5970852, 10283134, 15424701, 18078413, 20566268, 30849402, 36156826, 46274103, 54235239, 61698804, 72313652, 92548206, 108470478, 162705717, 185096412, 216940956, 325411434, 560430803, 650822868, 1120861606, 1681292409, 2241723212, 3362584818, 5043877227, 6725169636, 10087754454, 20175508908]

約数ペア:

[(1, 20175508908), (2, 10087754454), (3, 6725169636), (4, 5043877227), (6, 3362584818), (9, 2241723212), (12, 1681292409), (18, 1120861606), (31, 650822868), (36, 560430803), (62, 325411434), (93, 216940956), (109, 185096412), (124, 162705717), (186, 108470478), (218, 92548206), (279, 72313652), (327, 61698804), (372, 54235239), (436, 46274103), (558, 36156826), (654, 30849402), (981, 20566268), (1116, 18078413), (1308, 15424701), (1962, 10283134), (3379, 5970852), (3924, 5141567), (6758, 2985426), (10137, 1990284), (13516, 1492713), (20274, 995142), (30411, 663428), (40548, 497571), (60822, 331714), (121644, 165857)]