259324880

素因数分解:

$2^4\times 5^1\times {\mathrm{991}}^1\times {\mathrm{3271}}^1$

素因数の和:4275

約数の個数: 40

約数和(自身を含む): 603723264

約数和(自身を除く): 344398384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 991, 1982, 3271, 3964, 4955, 6542, 7928, 9910, 13084, 15856, 16355, 19820, 26168, 32710, 39640, 52336, 65420, 79280, 130840, 261680, 3241561, 6483122, 12966244, 16207805, 25932488, 32415610, 51864976, 64831220, 129662440, 259324880]

約数ペア:

[(1, 259324880), (2, 129662440), (4, 64831220), (5, 51864976), (8, 32415610), (10, 25932488), (16, 16207805), (20, 12966244), (40, 6483122), (80, 3241561), (991, 261680), (1982, 130840), (3271, 79280), (3964, 65420), (4955, 52336), (6542, 39640), (7928, 32710), (9910, 26168), (13084, 19820), (15856, 16355)]