42921640

素因数分解:

$2^3\times 5^1\times {\mathrm{269}}^1\times {\mathrm{3989}}^1$

素因数の和:4269

約数の個数: 32

約数和(自身を含む): 96957000

約数和(自身を除く): 54035360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 269, 538, 1076, 1345, 2152, 2690, 3989, 5380, 7978, 10760, 15956, 19945, 31912, 39890, 79780, 159560, 1073041, 2146082, 4292164, 5365205, 8584328, 10730410, 21460820, 42921640]

約数ペア:

[(1, 42921640), (2, 21460820), (4, 10730410), (5, 8584328), (8, 5365205), (10, 4292164), (20, 2146082), (40, 1073041), (269, 159560), (538, 79780), (1076, 39890), (1345, 31912), (2152, 19945), (2690, 15956), (3989, 10760), (5380, 7978)]