210007720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{403861}}^1$

素因数の和:403885

約数の個数: 32

約数和(自身を含む): 508866120

約数和(自身を除く): 298858400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 403861, 807722, 1615444, 2019305, 3230888, 4038610, 5250193, 8077220, 10500386, 16154440, 21000772, 26250965, 42001544, 52501930, 105003860, 210007720]

約数ペア:

[(1, 210007720), (2, 105003860), (4, 52501930), (5, 42001544), (8, 26250965), (10, 21000772), (13, 16154440), (20, 10500386), (26, 8077220), (40, 5250193), (52, 4038610), (65, 3230888), (104, 2019305), (130, 1615444), (260, 807722), (520, 403861)]