81557040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{339821}}^1$

素因数の和:339837

約数の個数: 40

約数和(自身を含む): 252827568

約数和(自身を除く): 171270528

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 339821, 679642, 1019463, 1359284, 1699105, 2038926, 2718568, 3398210, 4077852, 5097315, 5437136, 6796420, 8155704, 10194630, 13592840, 16311408, 20389260, 27185680, 40778520, 81557040]

約数ペア:

[(1, 81557040), (2, 40778520), (3, 27185680), (4, 20389260), (5, 16311408), (6, 13592840), (8, 10194630), (10, 8155704), (12, 6796420), (15, 5437136), (16, 5097315), (20, 4077852), (24, 3398210), (30, 2718568), (40, 2038926), (48, 1699105), (60, 1359284), (80, 1019463), (120, 679642), (240, 339821)]