40553680

素因数分解:

$2^4\times 5^1\times {\mathrm{449}}^1\times {\mathrm{1129}}^1$

素因数の和:1591

約数の個数: 40

約数和(自身を含む): 94581000

約数和(自身を除く): 54027320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 449, 898, 1129, 1796, 2245, 2258, 3592, 4490, 4516, 5645, 7184, 8980, 9032, 11290, 17960, 18064, 22580, 35920, 45160, 90320, 506921, 1013842, 2027684, 2534605, 4055368, 5069210, 8110736, 10138420, 20276840, 40553680]

約数ペア:

[(1, 40553680), (2, 20276840), (4, 10138420), (5, 8110736), (8, 5069210), (10, 4055368), (16, 2534605), (20, 2027684), (40, 1013842), (80, 506921), (449, 90320), (898, 45160), (1129, 35920), (1796, 22580), (2245, 18064), (2258, 17960), (3592, 11290), (4490, 9032), (4516, 8980), (5645, 7184)]