87894140

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{283}}^1\times {\mathrm{293}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 189368928

約数和(自身を除く): 101474788

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 283, 293, 530, 566, 586, 1060, 1132, 1172, 1415, 1465, 2830, 2930, 5660, 5860, 14999, 15529, 29998, 31058, 59996, 62116, 74995, 77645, 82919, 149990, 155290, 165838, 299980, 310580, 331676, 414595, 829190, 1658380, 4394707, 8789414, 17578828, 21973535, 43947070, 87894140]

約数ペア:

[(1, 87894140), (2, 43947070), (4, 21973535), (5, 17578828), (10, 8789414), (20, 4394707), (53, 1658380), (106, 829190), (212, 414595), (265, 331676), (283, 310580), (293, 299980), (530, 165838), (566, 155290), (586, 149990), (1060, 82919), (1132, 77645), (1172, 74995), (1415, 62116), (1465, 59996), (2830, 31058), (2930, 29998), (5660, 15529), (5860, 14999)]