1994800520

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^2\times {\mathrm{1877}}^1$

素因数の和:2214

約数の個数: 48

約数和(自身を含む): 4518411660

約数和(自身を除く): 2523611140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 1877, 3260, 3754, 6520, 7508, 9385, 15016, 18770, 26569, 37540, 53138, 75080, 106276, 132845, 212552, 265690, 305951, 531380, 611902, 1062760, 1223804, 1529755, 2447608, 3059510, 6119020, 12238040, 49870013, 99740026, 199480052, 249350065, 398960104, 498700130, 997400260, 1994800520]

約数ペア:

[(1, 1994800520), (2, 997400260), (4, 498700130), (5, 398960104), (8, 249350065), (10, 199480052), (20, 99740026), (40, 49870013), (163, 12238040), (326, 6119020), (652, 3059510), (815, 2447608), (1304, 1529755), (1630, 1223804), (1877, 1062760), (3260, 611902), (3754, 531380), (6520, 305951), (7508, 265690), (9385, 212552), (15016, 132845), (18770, 106276), (26569, 75080), (37540, 53138)]