91975780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{20809}}^1$

素因数の和:20848

約数の個数: 48

約数和(自身を含む): 220253040

約数和(自身を除く): 128277260

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 20809, 41618, 83236, 104045, 208090, 270517, 353753, 416180, 541034, 707506, 1082068, 1352585, 1415012, 1768765, 2705170, 3537530, 4598789, 5410340, 7075060, 9197578, 18395156, 22993945, 45987890, 91975780]

約数ペア:

[(1, 91975780), (2, 45987890), (4, 22993945), (5, 18395156), (10, 9197578), (13, 7075060), (17, 5410340), (20, 4598789), (26, 3537530), (34, 2705170), (52, 1768765), (65, 1415012), (68, 1352585), (85, 1082068), (130, 707506), (170, 541034), (221, 416180), (260, 353753), (340, 270517), (442, 208090), (884, 104045), (1105, 83236), (2210, 41618), (4420, 20809)]