81179930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{337}}^1$

素因数の和:483

約数の個数: 64

約数和(自身を含む): 168648480

約数和(自身を除く): 87468550

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 109, 130, 170, 218, 221, 337, 442, 545, 674, 1090, 1105, 1417, 1685, 1853, 2210, 2834, 3370, 3706, 4381, 5729, 7085, 8762, 9265, 11458, 14170, 18530, 21905, 24089, 28645, 36733, 43810, 48178, 57290, 73466, 74477, 120445, 148954, 183665, 240890, 367330, 372385, 477529, 624461, 744770, 955058, 1248922, 2387645, 3122305, 4775290, 6244610, 8117993, 16235986, 40589965, 81179930]

約数ペア:

[(1, 81179930), (2, 40589965), (5, 16235986), (10, 8117993), (13, 6244610), (17, 4775290), (26, 3122305), (34, 2387645), (65, 1248922), (85, 955058), (109, 744770), (130, 624461), (170, 477529), (218, 372385), (221, 367330), (337, 240890), (442, 183665), (545, 148954), (674, 120445), (1090, 74477), (1105, 73466), (1417, 57290), (1685, 48178), (1853, 43810), (2210, 36733), (2834, 28645), (3370, 24089), (3706, 21905), (4381, 18530), (5729, 14170), (7085, 11458), (8762, 9265)]