88990220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1$

素因数の和:495

約数の個数: 96

約数和(自身を含む): 218211840

約数和(自身を除く): 129221620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 43, 44, 46, 55, 86, 92, 110, 115, 172, 215, 220, 230, 253, 409, 430, 460, 473, 506, 818, 860, 946, 989, 1012, 1265, 1636, 1892, 1978, 2045, 2365, 2530, 3956, 4090, 4499, 4730, 4945, 5060, 8180, 8998, 9407, 9460, 9890, 10879, 17587, 17996, 18814, 19780, 21758, 22495, 35174, 37628, 43516, 44990, 47035, 54395, 70348, 87935, 89980, 94070, 103477, 108790, 175870, 188140, 193457, 206954, 217580, 351740, 386914, 404501, 413908, 517385, 773828, 809002, 967285, 1034770, 1618004, 1934570, 2022505, 2069540, 3869140, 4045010, 4449511, 8090020, 8899022, 17798044, 22247555, 44495110, 88990220]

約数ペア:

[(1, 88990220), (2, 44495110), (4, 22247555), (5, 17798044), (10, 8899022), (11, 8090020), (20, 4449511), (22, 4045010), (23, 3869140), (43, 2069540), (44, 2022505), (46, 1934570), (55, 1618004), (86, 1034770), (92, 967285), (110, 809002), (115, 773828), (172, 517385), (215, 413908), (220, 404501), (230, 386914), (253, 351740), (409, 217580), (430, 206954), (460, 193457), (473, 188140), (506, 175870), (818, 108790), (860, 103477), (946, 94070), (989, 89980), (1012, 87935), (1265, 70348), (1636, 54395), (1892, 47035), (1978, 44990), (2045, 43516), (2365, 37628), (2530, 35174), (3956, 22495), (4090, 21758), (4499, 19780), (4730, 18814), (4945, 17996), (5060, 17587), (8180, 10879), (8998, 9890), (9407, 9460)]