5491280

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{827}}^1$

素因数の和:923

約数の個数: 40

約数和(自身を含む): 12936672

約数和(自身を除く): 7445392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 827, 830, 1328, 1654, 1660, 3308, 3320, 4135, 6616, 6640, 8270, 13232, 16540, 33080, 66160, 68641, 137282, 274564, 343205, 549128, 686410, 1098256, 1372820, 2745640, 5491280]

約数ペア:

[(1, 5491280), (2, 2745640), (4, 1372820), (5, 1098256), (8, 686410), (10, 549128), (16, 343205), (20, 274564), (40, 137282), (80, 68641), (83, 66160), (166, 33080), (332, 16540), (415, 13232), (664, 8270), (827, 6640), (830, 6616), (1328, 4135), (1654, 3320), (1660, 3308)]