18682040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{971}}^1$

素因数の和:1032

約数の個数: 64

約数和(自身を含む): 46539360

約数和(自身を除く): 27857320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 185, 260, 296, 370, 481, 520, 740, 962, 971, 1480, 1924, 1942, 2405, 3848, 3884, 4810, 4855, 7768, 9620, 9710, 12623, 19240, 19420, 25246, 35927, 38840, 50492, 63115, 71854, 100984, 126230, 143708, 179635, 252460, 287416, 359270, 467051, 504920, 718540, 934102, 1437080, 1868204, 2335255, 3736408, 4670510, 9341020, 18682040]

約数ペア:

[(1, 18682040), (2, 9341020), (4, 4670510), (5, 3736408), (8, 2335255), (10, 1868204), (13, 1437080), (20, 934102), (26, 718540), (37, 504920), (40, 467051), (52, 359270), (65, 287416), (74, 252460), (104, 179635), (130, 143708), (148, 126230), (185, 100984), (260, 71854), (296, 63115), (370, 50492), (481, 38840), (520, 35927), (740, 25246), (962, 19420), (971, 19240), (1480, 12623), (1924, 9710), (1942, 9620), (2405, 7768), (3848, 4855), (3884, 4810)]