28330640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27241}}^1$

素因数の和:27267

約数の個数: 40

約数和(自身を含む): 70938168

約数和(自身を除く): 42607528

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 27241, 54482, 108964, 136205, 217928, 272410, 354133, 435856, 544820, 708266, 1089640, 1416532, 1770665, 2179280, 2833064, 3541330, 5666128, 7082660, 14165320, 28330640]

約数ペア:

[(1, 28330640), (2, 14165320), (4, 7082660), (5, 5666128), (8, 3541330), (10, 2833064), (13, 2179280), (16, 1770665), (20, 1416532), (26, 1089640), (40, 708266), (52, 544820), (65, 435856), (80, 354133), (104, 272410), (130, 217928), (208, 136205), (260, 108964), (520, 54482), (1040, 27241)]