909218830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{72103}}^1$

素因数の和:72220

約数の個数: 32

約数和(自身を含む): 1780680384

約数和(自身を除く): 871461554

約数列:

[1, 2, 5, 10, 13, 26, 65, 97, 130, 194, 485, 970, 1261, 2522, 6305, 12610, 72103, 144206, 360515, 721030, 937339, 1874678, 4686695, 6993991, 9373390, 13987982, 34969955, 69939910, 90921883, 181843766, 454609415, 909218830]

約数ペア:

[(1, 909218830), (2, 454609415), (5, 181843766), (10, 90921883), (13, 69939910), (26, 34969955), (65, 13987982), (97, 9373390), (130, 6993991), (194, 4686695), (485, 1874678), (970, 937339), (1261, 721030), (2522, 360515), (6305, 144206), (12610, 72103)]