89401280

素因数分解:

$2^6\times 5^1\times {\mathrm{491}}^1\times {\mathrm{569}}^1$

素因数の和:1077

約数の個数: 56

約数和(自身を含む): 213695280

約数和(自身を除く): 124294000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 491, 569, 982, 1138, 1964, 2276, 2455, 2845, 3928, 4552, 4910, 5690, 7856, 9104, 9820, 11380, 15712, 18208, 19640, 22760, 31424, 36416, 39280, 45520, 78560, 91040, 157120, 182080, 279379, 558758, 1117516, 1396895, 2235032, 2793790, 4470064, 5587580, 8940128, 11175160, 17880256, 22350320, 44700640, 89401280]

約数ペア:

[(1, 89401280), (2, 44700640), (4, 22350320), (5, 17880256), (8, 11175160), (10, 8940128), (16, 5587580), (20, 4470064), (32, 2793790), (40, 2235032), (64, 1396895), (80, 1117516), (160, 558758), (320, 279379), (491, 182080), (569, 157120), (982, 91040), (1138, 78560), (1964, 45520), (2276, 39280), (2455, 36416), (2845, 31424), (3928, 22760), (4552, 19640), (4910, 18208), (5690, 15712), (7856, 11380), (9104, 9820)]