12661840

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{971}}^1$

素因数の和:1147

約数の個数: 40

約数和(自身を含む): 29649888

約数和(自身を除く): 16988048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 971, 1304, 1630, 1942, 2608, 3260, 3884, 4855, 6520, 7768, 9710, 13040, 15536, 19420, 38840, 77680, 158273, 316546, 633092, 791365, 1266184, 1582730, 2532368, 3165460, 6330920, 12661840]

約数ペア:

[(1, 12661840), (2, 6330920), (4, 3165460), (5, 2532368), (8, 1582730), (10, 1266184), (16, 791365), (20, 633092), (40, 316546), (80, 158273), (163, 77680), (326, 38840), (652, 19420), (815, 15536), (971, 13040), (1304, 9710), (1630, 7768), (1942, 6520), (2608, 4855), (3260, 3884)]