161569607960

素因数分解:

$2^3\times 5^1\times {\mathrm{10223}}^1\times {\mathrm{395113}}^1$

素因数の和:405347

約数の個数: 32

約数和(自身を含む): 363568098240

約数和(自身を除く): 201998490280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 10223, 20446, 40892, 51115, 81784, 102230, 204460, 395113, 408920, 790226, 1580452, 1975565, 3160904, 3951130, 7902260, 15804520, 4039240199, 8078480398, 16156960796, 20196200995, 32313921592, 40392401990, 80784803980, 161569607960]

約数ペア:

[(1, 161569607960), (2, 80784803980), (4, 40392401990), (5, 32313921592), (8, 20196200995), (10, 16156960796), (20, 8078480398), (40, 4039240199), (10223, 15804520), (20446, 7902260), (40892, 3951130), (51115, 3160904), (81784, 1975565), (102230, 1580452), (204460, 790226), (395113, 408920)]