21139937240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3041}}^1\times {\mathrm{10223}}^1$

素因数の和:13292

約数の個数: 64

約数和(自身を含む): 50384280960

約数和(自身を除く): 29244343720

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 3041, 6082, 10223, 12164, 15205, 20446, 24328, 30410, 40892, 51115, 51697, 60820, 81784, 102230, 103394, 121640, 173791, 204460, 206788, 258485, 347582, 408920, 413576, 516970, 695164, 868955, 1033940, 1390328, 1737910, 2067880, 3475820, 6951640, 31088143, 62176286, 124352572, 155440715, 248705144, 310881430, 528498431, 621762860, 1056996862, 1243525720, 2113993724, 2642492155, 4227987448, 5284984310, 10569968620, 21139937240]

約数ペア:

[(1, 21139937240), (2, 10569968620), (4, 5284984310), (5, 4227987448), (8, 2642492155), (10, 2113993724), (17, 1243525720), (20, 1056996862), (34, 621762860), (40, 528498431), (68, 310881430), (85, 248705144), (136, 155440715), (170, 124352572), (340, 62176286), (680, 31088143), (3041, 6951640), (6082, 3475820), (10223, 2067880), (12164, 1737910), (15205, 1390328), (20446, 1033940), (24328, 868955), (30410, 695164), (40892, 516970), (51115, 413576), (51697, 408920), (60820, 347582), (81784, 258485), (102230, 206788), (103394, 204460), (121640, 173791)]