478212680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{787}}^1\times {\mathrm{1381}}^1$

素因数の和:2190

約数の個数: 64

約数和(自身を含む): 1176137280

約数和(自身を除く): 697924600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 787, 1381, 1574, 2762, 3148, 3935, 5524, 6296, 6905, 7870, 8657, 11048, 13810, 15191, 15740, 17314, 27620, 30382, 31480, 34628, 43285, 55240, 60764, 69256, 75955, 86570, 121528, 151910, 173140, 303820, 346280, 607640, 1086847, 2173694, 4347388, 5434235, 8694776, 10868470, 11955317, 21736940, 23910634, 43473880, 47821268, 59776585, 95642536, 119553170, 239106340, 478212680]

約数ペア:

[(1, 478212680), (2, 239106340), (4, 119553170), (5, 95642536), (8, 59776585), (10, 47821268), (11, 43473880), (20, 23910634), (22, 21736940), (40, 11955317), (44, 10868470), (55, 8694776), (88, 5434235), (110, 4347388), (220, 2173694), (440, 1086847), (787, 607640), (1381, 346280), (1574, 303820), (2762, 173140), (3148, 151910), (3935, 121528), (5524, 86570), (6296, 75955), (6905, 69256), (7870, 60764), (8657, 55240), (11048, 43285), (13810, 34628), (15191, 31480), (15740, 30382), (17314, 27620)]