1278177580

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{40169}}^1$

素因数の和:40258

約数の個数: 48

約数和(自身を含む): 2820898080

約数和(自身を除く): 1542720500

約数列:

[1, 2, 4, 5, 10, 20, 37, 43, 74, 86, 148, 172, 185, 215, 370, 430, 740, 860, 1591, 3182, 6364, 7955, 15910, 31820, 40169, 80338, 160676, 200845, 401690, 803380, 1486253, 1727267, 2972506, 3454534, 5945012, 6909068, 7431265, 8636335, 14862530, 17272670, 29725060, 34545340, 63908879, 127817758, 255635516, 319544395, 639088790, 1278177580]

約数ペア:

[(1, 1278177580), (2, 639088790), (4, 319544395), (5, 255635516), (10, 127817758), (20, 63908879), (37, 34545340), (43, 29725060), (74, 17272670), (86, 14862530), (148, 8636335), (172, 7431265), (185, 6909068), (215, 5945012), (370, 3454534), (430, 2972506), (740, 1727267), (860, 1486253), (1591, 803380), (3182, 401690), (6364, 200845), (7955, 160676), (15910, 80338), (31820, 40169)]