855173680

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{248597}}^1$

素因数の和:248653

約数の個数: 40

約数和(自身を含む): 2034526032

約数和(自身を除く): 1179352352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 248597, 497194, 994388, 1242985, 1988776, 2485970, 3977552, 4971940, 9943880, 10689671, 19887760, 21379342, 42758684, 53448355, 85517368, 106896710, 171034736, 213793420, 427586840, 855173680]

約数ペア:

[(1, 855173680), (2, 427586840), (4, 213793420), (5, 171034736), (8, 106896710), (10, 85517368), (16, 53448355), (20, 42758684), (40, 21379342), (43, 19887760), (80, 10689671), (86, 9943880), (172, 4971940), (215, 3977552), (344, 2485970), (430, 1988776), (688, 1242985), (860, 994388), (1720, 497194), (3440, 248597)]