4179980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{409}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 10194240

約数和(自身を除く): 6014260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 409, 511, 730, 818, 1022, 1460, 1636, 2044, 2045, 2555, 2863, 4090, 5110, 5726, 8180, 10220, 11452, 14315, 28630, 29857, 57260, 59714, 119428, 149285, 208999, 298570, 417998, 597140, 835996, 1044995, 2089990, 4179980]

約数ペア:

[(1, 4179980), (2, 2089990), (4, 1044995), (5, 835996), (7, 597140), (10, 417998), (14, 298570), (20, 208999), (28, 149285), (35, 119428), (70, 59714), (73, 57260), (140, 29857), (146, 28630), (292, 14315), (365, 11452), (409, 10220), (511, 8180), (730, 5726), (818, 5110), (1022, 4090), (1460, 2863), (1636, 2555), (2044, 2045)]