313996840

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{117163}}^1$

素因数の和:117241

約数の個数: 32

約数和(自身を含む): 717043680

約数和(自身を除く): 403046840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 117163, 234326, 468652, 585815, 937304, 1171630, 2343260, 4686520, 7849921, 15699842, 31399684, 39249605, 62799368, 78499210, 156998420, 313996840]

約数ペア:

[(1, 313996840), (2, 156998420), (4, 78499210), (5, 62799368), (8, 39249605), (10, 31399684), (20, 15699842), (40, 7849921), (67, 4686520), (134, 2343260), (268, 1171630), (335, 937304), (536, 585815), (670, 468652), (1340, 234326), (2680, 117163)]