61315420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{859}}^1$

素因数の和:994

約数の個数: 48

約数和(自身を含む): 133499520

約数和(自身を除く): 72184100

約数列:

[1, 2, 4, 5, 10, 20, 43, 83, 86, 166, 172, 215, 332, 415, 430, 830, 859, 860, 1660, 1718, 3436, 3569, 4295, 7138, 8590, 14276, 17180, 17845, 35690, 36937, 71297, 71380, 73874, 142594, 147748, 184685, 285188, 356485, 369370, 712970, 738740, 1425940, 3065771, 6131542, 12263084, 15328855, 30657710, 61315420]

約数ペア:

[(1, 61315420), (2, 30657710), (4, 15328855), (5, 12263084), (10, 6131542), (20, 3065771), (43, 1425940), (83, 738740), (86, 712970), (166, 369370), (172, 356485), (215, 285188), (332, 184685), (415, 147748), (430, 142594), (830, 73874), (859, 71380), (860, 71297), (1660, 36937), (1718, 35690), (3436, 17845), (3569, 17180), (4295, 14276), (7138, 8590)]