289647940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{6841}}^1$

素因数の和:6952

約数の個数: 48

約数和(自身を含む): 637948080

約数和(自身を除く): 348300140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 73, 116, 145, 146, 290, 292, 365, 580, 730, 1460, 2117, 4234, 6841, 8468, 10585, 13682, 21170, 27364, 34205, 42340, 68410, 136820, 198389, 396778, 499393, 793556, 991945, 998786, 1983890, 1997572, 2496965, 3967780, 4993930, 9987860, 14482397, 28964794, 57929588, 72411985, 144823970, 289647940]

約数ペア:

[(1, 289647940), (2, 144823970), (4, 72411985), (5, 57929588), (10, 28964794), (20, 14482397), (29, 9987860), (58, 4993930), (73, 3967780), (116, 2496965), (145, 1997572), (146, 1983890), (290, 998786), (292, 991945), (365, 793556), (580, 499393), (730, 396778), (1460, 198389), (2117, 136820), (4234, 68410), (6841, 42340), (8468, 34205), (10585, 27364), (13682, 21170)]