210131820

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{43237}}^1$

素因数の和:43261

約数の個数: 72

約数和(自身を含む): 661022544

約数和(自身を除く): 450890724

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4860, 43237, 86474, 129711, 172948, 216185, 259422, 389133, 432370, 518844, 648555, 778266, 864740, 1167399, 1297110, 1556532, 1945665, 2334798, 2594220, 3502197, 3891330, 4669596, 5836995, 7004394, 7782660, 10506591, 11673990, 14008788, 17510985, 21013182, 23347980, 35021970, 42026364, 52532955, 70043940, 105065910, 210131820]

約数ペア:

[(1, 210131820), (2, 105065910), (3, 70043940), (4, 52532955), (5, 42026364), (6, 35021970), (9, 23347980), (10, 21013182), (12, 17510985), (15, 14008788), (18, 11673990), (20, 10506591), (27, 7782660), (30, 7004394), (36, 5836995), (45, 4669596), (54, 3891330), (60, 3502197), (81, 2594220), (90, 2334798), (108, 1945665), (135, 1556532), (162, 1297110), (180, 1167399), (243, 864740), (270, 778266), (324, 648555), (405, 518844), (486, 432370), (540, 389133), (810, 259422), (972, 216185), (1215, 172948), (1620, 129711), (2430, 86474), (4860, 43237)]