28267940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1171}}^1$

素因数の和:1268

約数の個数: 48

約数和(自身を含む): 63794304

約数和(自身を除く): 35526364

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 71, 85, 142, 170, 284, 340, 355, 710, 1171, 1207, 1420, 2342, 2414, 4684, 4828, 5855, 6035, 11710, 12070, 19907, 23420, 24140, 39814, 79628, 83141, 99535, 166282, 199070, 332564, 398140, 415705, 831410, 1413397, 1662820, 2826794, 5653588, 7066985, 14133970, 28267940]

約数ペア:

[(1, 28267940), (2, 14133970), (4, 7066985), (5, 5653588), (10, 2826794), (17, 1662820), (20, 1413397), (34, 831410), (68, 415705), (71, 398140), (85, 332564), (142, 199070), (170, 166282), (284, 99535), (340, 83141), (355, 79628), (710, 39814), (1171, 24140), (1207, 23420), (1420, 19907), (2342, 12070), (2414, 11710), (4684, 6035), (4828, 5855)]