287856580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{6997}}^1$

素因数の和:7045

約数の個数: 72

約数和(自身を含む): 703634904

約数和(自身を除く): 415778324

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 121, 170, 187, 220, 242, 340, 374, 484, 605, 748, 935, 1210, 1870, 2057, 2420, 3740, 4114, 6997, 8228, 10285, 13994, 20570, 27988, 34985, 41140, 69970, 76967, 118949, 139940, 153934, 237898, 307868, 384835, 475796, 594745, 769670, 846637, 1189490, 1308439, 1539340, 1693274, 2378980, 2616878, 3386548, 4233185, 5233756, 6542195, 8466370, 13084390, 14392829, 16932740, 26168780, 28785658, 57571316, 71964145, 143928290, 287856580]

約数ペア:

[(1, 287856580), (2, 143928290), (4, 71964145), (5, 57571316), (10, 28785658), (11, 26168780), (17, 16932740), (20, 14392829), (22, 13084390), (34, 8466370), (44, 6542195), (55, 5233756), (68, 4233185), (85, 3386548), (110, 2616878), (121, 2378980), (170, 1693274), (187, 1539340), (220, 1308439), (242, 1189490), (340, 846637), (374, 769670), (484, 594745), (605, 475796), (748, 384835), (935, 307868), (1210, 237898), (1870, 153934), (2057, 139940), (2420, 118949), (3740, 76967), (4114, 69970), (6997, 41140), (8228, 34985), (10285, 27988), (13994, 20570)]