147499960

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89939}}^1$

素因数の和:89991

約数の個数: 32

約数和(自身を含む): 339973200

約数和(自身を除く): 192473240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 89939, 179878, 359756, 449695, 719512, 899390, 1798780, 3597560, 3687499, 7374998, 14749996, 18437495, 29499992, 36874990, 73749980, 147499960]

約数ペア:

[(1, 147499960), (2, 73749980), (4, 36874990), (5, 29499992), (8, 18437495), (10, 14749996), (20, 7374998), (40, 3687499), (41, 3597560), (82, 1798780), (164, 899390), (205, 719512), (328, 449695), (410, 359756), (820, 179878), (1640, 89939)]