211581640

素因数分解:

$2^3\times 5^1\times {\mathrm{617}}^1\times {\mathrm{8573}}^1$

素因数の和:9201

約数の個数: 32

約数和(自身を含む): 476885880

約数和(自身を除く): 265304240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 617, 1234, 2468, 3085, 4936, 6170, 8573, 12340, 17146, 24680, 34292, 42865, 68584, 85730, 171460, 342920, 5289541, 10579082, 21158164, 26447705, 42316328, 52895410, 105790820, 211581640]

約数ペア:

[(1, 211581640), (2, 105790820), (4, 52895410), (5, 42316328), (8, 26447705), (10, 21158164), (20, 10579082), (40, 5289541), (617, 342920), (1234, 171460), (2468, 85730), (3085, 68584), (4936, 42865), (6170, 34292), (8573, 24680), (12340, 17146)]