8440640

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2029}}^1$

素因数の和:2059

約数の個数: 56

約数和(自身を含む): 21656040

約数和(自身を除く): 13215400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2029, 2080, 4058, 4160, 8116, 10145, 16232, 20290, 26377, 32464, 40580, 52754, 64928, 81160, 105508, 129856, 131885, 162320, 211016, 263770, 324640, 422032, 527540, 649280, 844064, 1055080, 1688128, 2110160, 4220320, 8440640]

約数ペア:

[(1, 8440640), (2, 4220320), (4, 2110160), (5, 1688128), (8, 1055080), (10, 844064), (13, 649280), (16, 527540), (20, 422032), (26, 324640), (32, 263770), (40, 211016), (52, 162320), (64, 131885), (65, 129856), (80, 105508), (104, 81160), (130, 64928), (160, 52754), (208, 40580), (260, 32464), (320, 26377), (416, 20290), (520, 16232), (832, 10145), (1040, 8116), (2029, 4160), (2080, 4058)]