90871970

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{10909}}^1$

素因数の和:10947

約数の個数: 48

約数和(自身を含む): 201485880

約数和(自身を除く): 110613910

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 49, 70, 85, 98, 119, 170, 238, 245, 490, 595, 833, 1190, 1666, 4165, 8330, 10909, 21818, 54545, 76363, 109090, 152726, 185453, 370906, 381815, 534541, 763630, 927265, 1069082, 1298171, 1854530, 2596342, 2672705, 5345410, 6490855, 9087197, 12981710, 18174394, 45435985, 90871970]

約数ペア:

[(1, 90871970), (2, 45435985), (5, 18174394), (7, 12981710), (10, 9087197), (14, 6490855), (17, 5345410), (34, 2672705), (35, 2596342), (49, 1854530), (70, 1298171), (85, 1069082), (98, 927265), (119, 763630), (170, 534541), (238, 381815), (245, 370906), (490, 185453), (595, 152726), (833, 109090), (1190, 76363), (1666, 54545), (4165, 21818), (8330, 10909)]