99981040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{65777}}^1$

素因数の和:65809

約数の個数: 40

約数和(自身を含む): 244694160

約数和(自身を除く): 144713120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 65777, 131554, 263108, 328885, 526216, 657770, 1052432, 1249763, 1315540, 2499526, 2631080, 4999052, 5262160, 6248815, 9998104, 12497630, 19996208, 24995260, 49990520, 99981040]

約数ペア:

[(1, 99981040), (2, 49990520), (4, 24995260), (5, 19996208), (8, 12497630), (10, 9998104), (16, 6248815), (19, 5262160), (20, 4999052), (38, 2631080), (40, 2499526), (76, 1315540), (80, 1249763), (95, 1052432), (152, 657770), (190, 526216), (304, 328885), (380, 263108), (760, 131554), (1520, 65777)]