2021508860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{659}}^1\times {\mathrm{21911}}^1$

素因数の和:22586

約数の個数: 48

約数和(自身を含む): 4859205120

約数和(自身を除く): 2837696260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 659, 1318, 2636, 3295, 4613, 6590, 9226, 13180, 18452, 21911, 23065, 43822, 46130, 87644, 92260, 109555, 153377, 219110, 306754, 438220, 613508, 766885, 1533770, 3067540, 14439349, 28878698, 57757396, 72196745, 101075443, 144393490, 202150886, 288786980, 404301772, 505377215, 1010754430, 2021508860]

約数ペア:

[(1, 2021508860), (2, 1010754430), (4, 505377215), (5, 404301772), (7, 288786980), (10, 202150886), (14, 144393490), (20, 101075443), (28, 72196745), (35, 57757396), (70, 28878698), (140, 14439349), (659, 3067540), (1318, 1533770), (2636, 766885), (3295, 613508), (4613, 438220), (6590, 306754), (9226, 219110), (13180, 153377), (18452, 109555), (21911, 92260), (23065, 87644), (43822, 46130)]