4390220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 9746688

約数和(自身を除く): 5356468

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 73, 97, 124, 146, 155, 194, 292, 310, 365, 388, 485, 620, 730, 970, 1460, 1940, 2263, 3007, 4526, 6014, 7081, 9052, 11315, 12028, 14162, 15035, 22630, 28324, 30070, 35405, 45260, 60140, 70810, 141620, 219511, 439022, 878044, 1097555, 2195110, 4390220]

約数ペア:

[(1, 4390220), (2, 2195110), (4, 1097555), (5, 878044), (10, 439022), (20, 219511), (31, 141620), (62, 70810), (73, 60140), (97, 45260), (124, 35405), (146, 30070), (155, 28324), (194, 22630), (292, 15035), (310, 14162), (365, 12028), (388, 11315), (485, 9052), (620, 7081), (730, 6014), (970, 4526), (1460, 3007), (1940, 2263)]