1288493820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{821}}^1\times {\mathrm{8719}}^1$

素因数の和:9555

約数の個数: 72

約数和(自身を含む): 3913640640

約数和(自身を除く): 2625146820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 821, 1642, 2463, 3284, 4105, 4926, 7389, 8210, 8719, 9852, 12315, 14778, 16420, 17438, 24630, 26157, 29556, 34876, 36945, 43595, 49260, 52314, 73890, 78471, 87190, 104628, 130785, 147780, 156942, 174380, 261570, 313884, 392355, 523140, 784710, 1569420, 7158299, 14316598, 21474897, 28633196, 35791495, 42949794, 64424691, 71582990, 85899588, 107374485, 128849382, 143165980, 214748970, 257698764, 322123455, 429497940, 644246910, 1288493820]

約数ペア:

[(1, 1288493820), (2, 644246910), (3, 429497940), (4, 322123455), (5, 257698764), (6, 214748970), (9, 143165980), (10, 128849382), (12, 107374485), (15, 85899588), (18, 71582990), (20, 64424691), (30, 42949794), (36, 35791495), (45, 28633196), (60, 21474897), (90, 14316598), (180, 7158299), (821, 1569420), (1642, 784710), (2463, 523140), (3284, 392355), (4105, 313884), (4926, 261570), (7389, 174380), (8210, 156942), (8719, 147780), (9852, 130785), (12315, 104628), (14778, 87190), (16420, 78471), (17438, 73890), (24630, 52314), (26157, 49260), (29556, 43595), (34876, 36945)]