1257320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^2$

素因数の和:114

約数の個数: 48

約数和(自身を含む): 3066660

約数和(自身を除く): 1809340

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 68, 85, 86, 136, 170, 172, 215, 340, 344, 430, 680, 731, 860, 1462, 1720, 1849, 2924, 3655, 3698, 5848, 7310, 7396, 9245, 14620, 14792, 18490, 29240, 31433, 36980, 62866, 73960, 125732, 157165, 251464, 314330, 628660, 1257320]

約数ペア:

[(1, 1257320), (2, 628660), (4, 314330), (5, 251464), (8, 157165), (10, 125732), (17, 73960), (20, 62866), (34, 36980), (40, 31433), (43, 29240), (68, 18490), (85, 14792), (86, 14620), (136, 9245), (170, 7396), (172, 7310), (215, 5848), (340, 3698), (344, 3655), (430, 2924), (680, 1849), (731, 1720), (860, 1462)]