5420980

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 11934720

約数和(自身を除く): 6513740

約数列:

[1, 2, 4, 5, 10, 20, 47, 73, 79, 94, 146, 158, 188, 235, 292, 316, 365, 395, 470, 730, 790, 940, 1460, 1580, 3431, 3713, 5767, 6862, 7426, 11534, 13724, 14852, 17155, 18565, 23068, 28835, 34310, 37130, 57670, 68620, 74260, 115340, 271049, 542098, 1084196, 1355245, 2710490, 5420980]

約数ペア:

[(1, 5420980), (2, 2710490), (4, 1355245), (5, 1084196), (10, 542098), (20, 271049), (47, 115340), (73, 74260), (79, 68620), (94, 57670), (146, 37130), (158, 34310), (188, 28835), (235, 23068), (292, 18565), (316, 17155), (365, 14852), (395, 13724), (470, 11534), (730, 7426), (790, 6862), (940, 5767), (1460, 3713), (1580, 3431)]