207940820

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{311}}^1\times {\mathrm{331}}^1$

素因数の和:752

約数の個数: 48

約数和(自身を含む): 443753856

約数和(自身を除く): 235813036

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 311, 331, 404, 505, 622, 662, 1010, 1244, 1324, 1555, 1655, 2020, 3110, 3310, 6220, 6620, 31411, 33431, 62822, 66862, 102941, 125644, 133724, 157055, 167155, 205882, 314110, 334310, 411764, 514705, 628220, 668620, 1029410, 2058820, 10397041, 20794082, 41588164, 51985205, 103970410, 207940820]

約数ペア:

[(1, 207940820), (2, 103970410), (4, 51985205), (5, 41588164), (10, 20794082), (20, 10397041), (101, 2058820), (202, 1029410), (311, 668620), (331, 628220), (404, 514705), (505, 411764), (622, 334310), (662, 314110), (1010, 205882), (1244, 167155), (1324, 157055), (1555, 133724), (1655, 125644), (2020, 102941), (3110, 66862), (3310, 62822), (6220, 33431), (6620, 31411)]