401120

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:147

約数の個数: 48

約数和(自身を含む): 997920

約数和(自身を除く): 596800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 109, 115, 160, 184, 218, 230, 368, 436, 460, 545, 736, 872, 920, 1090, 1744, 1840, 2180, 2507, 3488, 3680, 4360, 5014, 8720, 10028, 12535, 17440, 20056, 25070, 40112, 50140, 80224, 100280, 200560, 401120]

約数ペア:

[(1, 401120), (2, 200560), (4, 100280), (5, 80224), (8, 50140), (10, 40112), (16, 25070), (20, 20056), (23, 17440), (32, 12535), (40, 10028), (46, 8720), (80, 5014), (92, 4360), (109, 3680), (115, 3488), (160, 2507), (184, 2180), (218, 1840), (230, 1744), (368, 1090), (436, 920), (460, 872), (545, 736)]