1994407760

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{607}}^1\times {\mathrm{613}}^1$

素因数の和:1300

約数の個数: 80

約数和(自身を含む): 4721650176

約数和(自身を除く): 2727242416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 607, 613, 670, 1072, 1214, 1226, 1340, 2428, 2452, 2680, 3035, 3065, 4856, 4904, 5360, 6070, 6130, 9712, 9808, 12140, 12260, 24280, 24520, 40669, 41071, 48560, 49040, 81338, 82142, 162676, 164284, 203345, 205355, 325352, 328568, 372091, 406690, 410710, 650704, 657136, 744182, 813380, 821420, 1488364, 1626760, 1642840, 1860455, 2976728, 3253520, 3285680, 3720910, 5953456, 7441820, 14883640, 24930097, 29767280, 49860194, 99720388, 124650485, 199440776, 249300970, 398881552, 498601940, 997203880, 1994407760]

約数ペア:

[(1, 1994407760), (2, 997203880), (4, 498601940), (5, 398881552), (8, 249300970), (10, 199440776), (16, 124650485), (20, 99720388), (40, 49860194), (67, 29767280), (80, 24930097), (134, 14883640), (268, 7441820), (335, 5953456), (536, 3720910), (607, 3285680), (613, 3253520), (670, 2976728), (1072, 1860455), (1214, 1642840), (1226, 1626760), (1340, 1488364), (2428, 821420), (2452, 813380), (2680, 744182), (3035, 657136), (3065, 650704), (4856, 410710), (4904, 406690), (5360, 372091), (6070, 328568), (6130, 325352), (9712, 205355), (9808, 203345), (12140, 164284), (12260, 162676), (24280, 82142), (24520, 81338), (40669, 49040), (41071, 48560)]