87423880

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{13921}}^1$

素因数の和:14089

約数の個数: 32

約数和(自身を含む): 197970840

約数和(自身を除く): 110546960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 13921, 27842, 55684, 69605, 111368, 139210, 278420, 556840, 2185597, 4371194, 8742388, 10927985, 17484776, 21855970, 43711940, 87423880]

約数ペア:

[(1, 87423880), (2, 43711940), (4, 21855970), (5, 17484776), (8, 10927985), (10, 8742388), (20, 4371194), (40, 2185597), (157, 556840), (314, 278420), (628, 139210), (785, 111368), (1256, 69605), (1570, 55684), (3140, 27842), (6280, 13921)]