72666620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{21499}}^1$

素因数の和:21534

約数の個数: 36

約数和(自身を含む): 165249000

約数和(自身を除く): 92582380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 21499, 42998, 85996, 107495, 214990, 279487, 429980, 558974, 1117948, 1397435, 2794870, 3633331, 5589740, 7266662, 14533324, 18166655, 36333310, 72666620]

約数ペア:

[(1, 72666620), (2, 36333310), (4, 18166655), (5, 14533324), (10, 7266662), (13, 5589740), (20, 3633331), (26, 2794870), (52, 1397435), (65, 1117948), (130, 558974), (169, 429980), (260, 279487), (338, 214990), (676, 107495), (845, 85996), (1690, 42998), (3380, 21499)]