18258460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{557}}^1$

素因数の和:726

約数の個数: 48

約数和(自身を含む): 42184800

約数和(自身を除く): 23926340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 149, 220, 298, 557, 596, 745, 1114, 1490, 1639, 2228, 2785, 2980, 3278, 5570, 6127, 6556, 8195, 11140, 12254, 16390, 24508, 30635, 32780, 61270, 82993, 122540, 165986, 331972, 414965, 829930, 912923, 1659860, 1825846, 3651692, 4564615, 9129230, 18258460]

約数ペア:

[(1, 18258460), (2, 9129230), (4, 4564615), (5, 3651692), (10, 1825846), (11, 1659860), (20, 912923), (22, 829930), (44, 414965), (55, 331972), (110, 165986), (149, 122540), (220, 82993), (298, 61270), (557, 32780), (596, 30635), (745, 24508), (1114, 16390), (1490, 12254), (1639, 11140), (2228, 8195), (2785, 6556), (2980, 6127), (3278, 5570)]