211720280

素因数分解:

$2^3\times 5^1\times {\mathrm{601}}^1\times {\mathrm{8807}}^1$

素因数の和:9419

約数の個数: 32

約数和(自身を含む): 477217440

約数和(自身を除く): 265497160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 601, 1202, 2404, 3005, 4808, 6010, 8807, 12020, 17614, 24040, 35228, 44035, 70456, 88070, 176140, 352280, 5293007, 10586014, 21172028, 26465035, 42344056, 52930070, 105860140, 211720280]

約数ペア:

[(1, 211720280), (2, 105860140), (4, 52930070), (5, 42344056), (8, 26465035), (10, 21172028), (20, 10586014), (40, 5293007), (601, 352280), (1202, 176140), (2404, 88070), (3005, 70456), (4808, 44035), (6010, 35228), (8807, 24040), (12020, 17614)]