4998980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{5101}}^1$

素因数の和:5124

約数の個数: 36

約数和(自身を含む): 12214188

約数和(自身を除く): 7215208

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 5101, 10202, 20404, 25505, 35707, 51010, 71414, 102020, 142828, 178535, 249949, 357070, 499898, 714140, 999796, 1249745, 2499490, 4998980]

約数ペア:

[(1, 4998980), (2, 2499490), (4, 1249745), (5, 999796), (7, 714140), (10, 499898), (14, 357070), (20, 249949), (28, 178535), (35, 142828), (49, 102020), (70, 71414), (98, 51010), (140, 35707), (196, 25505), (245, 20404), (490, 10202), (980, 5101)]