28654120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{65123}}^1$

素因数の和:65145

約数の個数: 32

約数和(自身を含む): 70333920

約数和(自身を除く): 41679800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 65123, 130246, 260492, 325615, 520984, 651230, 716353, 1302460, 1432706, 2604920, 2865412, 3581765, 5730824, 7163530, 14327060, 28654120]

約数ペア:

[(1, 28654120), (2, 14327060), (4, 7163530), (5, 5730824), (8, 3581765), (10, 2865412), (11, 2604920), (20, 1432706), (22, 1302460), (40, 716353), (44, 651230), (55, 520984), (88, 325615), (110, 260492), (220, 130246), (440, 65123)]