19381604080

素因数分解:

$2^4\times 5^1\times {\mathrm{281}}^1\times {\mathrm{862171}}^1$

素因数の和:862465

約数の個数: 40

約数和(自身を含む): 45222645744

約数和(自身を除く): 25841041664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 281, 562, 1124, 1405, 2248, 2810, 4496, 5620, 11240, 22480, 862171, 1724342, 3448684, 4310855, 6897368, 8621710, 13794736, 17243420, 34486840, 68973680, 242270051, 484540102, 969080204, 1211350255, 1938160408, 2422700510, 3876320816, 4845401020, 9690802040, 19381604080]

約数ペア:

[(1, 19381604080), (2, 9690802040), (4, 4845401020), (5, 3876320816), (8, 2422700510), (10, 1938160408), (16, 1211350255), (20, 969080204), (40, 484540102), (80, 242270051), (281, 68973680), (562, 34486840), (1124, 17243420), (1405, 13794736), (2248, 8621710), (2810, 6897368), (4496, 4310855), (5620, 3448684), (11240, 1724342), (22480, 862171)]