87628880

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{64433}}^1$

素因数の和:64463

約数の個数: 40

約数和(自身を含む): 215725032

約数和(自身を除く): 128096152

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 64433, 128866, 257732, 322165, 515464, 644330, 1030928, 1095361, 1288660, 2190722, 2577320, 4381444, 5154640, 5476805, 8762888, 10953610, 17525776, 21907220, 43814440, 87628880]

約数ペア:

[(1, 87628880), (2, 43814440), (4, 21907220), (5, 17525776), (8, 10953610), (10, 8762888), (16, 5476805), (17, 5154640), (20, 4381444), (34, 2577320), (40, 2190722), (68, 1288660), (80, 1095361), (85, 1030928), (136, 644330), (170, 515464), (272, 322165), (340, 257732), (680, 128866), (1360, 64433)]