9997960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{5101}}^1$

素因数の和:5126

約数の個数: 48

約数和(自身を含む): 26173260

約数和(自身を除く): 16175300

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 5101, 10202, 20404, 25505, 35707, 40808, 51010, 71414, 102020, 142828, 178535, 204040, 249949, 285656, 357070, 499898, 714140, 999796, 1249745, 1428280, 1999592, 2499490, 4998980, 9997960]

約数ペア:

[(1, 9997960), (2, 4998980), (4, 2499490), (5, 1999592), (7, 1428280), (8, 1249745), (10, 999796), (14, 714140), (20, 499898), (28, 357070), (35, 285656), (40, 249949), (49, 204040), (56, 178535), (70, 142828), (98, 102020), (140, 71414), (196, 51010), (245, 40808), (280, 35707), (392, 25505), (490, 20404), (980, 10202), (1960, 5101)]