18683120

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{571}}^1$

素因数の和:993

約数の個数: 40

約数和(自身を含む): 43620720

約数和(自身を除く): 24937600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 571, 818, 1142, 1636, 2045, 2284, 2855, 3272, 4090, 4568, 5710, 6544, 8180, 9136, 11420, 16360, 22840, 32720, 45680, 233539, 467078, 934156, 1167695, 1868312, 2335390, 3736624, 4670780, 9341560, 18683120]

約数ペア:

[(1, 18683120), (2, 9341560), (4, 4670780), (5, 3736624), (8, 2335390), (10, 1868312), (16, 1167695), (20, 934156), (40, 467078), (80, 233539), (409, 45680), (571, 32720), (818, 22840), (1142, 16360), (1636, 11420), (2045, 9136), (2284, 8180), (2855, 6544), (3272, 5710), (4090, 4568)]