220180240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{569}}^1\times {\mathrm{691}}^1$

素因数の和:1280

約数の個数: 80

約数和(自身を含む): 586926720

約数和(自身を除く): 366746480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 569, 691, 1138, 1382, 2276, 2764, 2845, 3455, 3983, 4552, 4837, 5528, 5690, 6910, 7966, 9104, 9674, 11056, 11380, 13820, 15932, 19348, 19915, 22760, 24185, 27640, 31864, 38696, 39830, 45520, 48370, 55280, 63728, 77392, 79660, 96740, 159320, 193480, 318640, 386960, 393179, 786358, 1572716, 1965895, 2752253, 3145432, 3931790, 5504506, 6290864, 7863580, 11009012, 13761265, 15727160, 22018024, 27522530, 31454320, 44036048, 55045060, 110090120, 220180240]

約数ペア:

[(1, 220180240), (2, 110090120), (4, 55045060), (5, 44036048), (7, 31454320), (8, 27522530), (10, 22018024), (14, 15727160), (16, 13761265), (20, 11009012), (28, 7863580), (35, 6290864), (40, 5504506), (56, 3931790), (70, 3145432), (80, 2752253), (112, 1965895), (140, 1572716), (280, 786358), (560, 393179), (569, 386960), (691, 318640), (1138, 193480), (1382, 159320), (2276, 96740), (2764, 79660), (2845, 77392), (3455, 63728), (3983, 55280), (4552, 48370), (4837, 45520), (5528, 39830), (5690, 38696), (6910, 31864), (7966, 27640), (9104, 24185), (9674, 22760), (11056, 19915), (11380, 19348), (13820, 15932)]