20180220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1061}}^1$

素因数の和:1390

約数の個数: 48

約数和(自身を含む): 56736288

約数和(自身を除く): 36556068

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 317, 634, 951, 1061, 1268, 1585, 1902, 2122, 3170, 3183, 3804, 4244, 4755, 5305, 6340, 6366, 9510, 10610, 12732, 15915, 19020, 21220, 31830, 63660, 336337, 672674, 1009011, 1345348, 1681685, 2018022, 3363370, 4036044, 5045055, 6726740, 10090110, 20180220]

約数ペア:

[(1, 20180220), (2, 10090110), (3, 6726740), (4, 5045055), (5, 4036044), (6, 3363370), (10, 2018022), (12, 1681685), (15, 1345348), (20, 1009011), (30, 672674), (60, 336337), (317, 63660), (634, 31830), (951, 21220), (1061, 19020), (1268, 15915), (1585, 12732), (1902, 10610), (2122, 9510), (3170, 6366), (3183, 6340), (3804, 5305), (4244, 4755)]