87803420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{193}}^1$

素因数の和:291

約数の個数: 72

約数和(自身を含む): 198257136

約数和(自身を除く): 110453716

約数列:

[1, 2, 4, 5, 10, 20, 23, 43, 46, 86, 92, 115, 172, 193, 215, 230, 386, 430, 460, 529, 772, 860, 965, 989, 1058, 1930, 1978, 2116, 2645, 3860, 3956, 4439, 4945, 5290, 8299, 8878, 9890, 10580, 16598, 17756, 19780, 22195, 22747, 33196, 41495, 44390, 45494, 82990, 88780, 90988, 102097, 113735, 165980, 190877, 204194, 227470, 381754, 408388, 454940, 510485, 763508, 954385, 1020970, 1908770, 2041940, 3817540, 4390171, 8780342, 17560684, 21950855, 43901710, 87803420]

約数ペア:

[(1, 87803420), (2, 43901710), (4, 21950855), (5, 17560684), (10, 8780342), (20, 4390171), (23, 3817540), (43, 2041940), (46, 1908770), (86, 1020970), (92, 954385), (115, 763508), (172, 510485), (193, 454940), (215, 408388), (230, 381754), (386, 227470), (430, 204194), (460, 190877), (529, 165980), (772, 113735), (860, 102097), (965, 90988), (989, 88780), (1058, 82990), (1930, 45494), (1978, 44390), (2116, 41495), (2645, 33196), (3860, 22747), (3956, 22195), (4439, 19780), (4945, 17756), (5290, 16598), (8299, 10580), (8878, 9890)]