542440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:273

約数の個数: 32

約数和(自身を含む): 1244160

約数和(自身を除く): 701720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 191, 284, 355, 382, 568, 710, 764, 955, 1420, 1528, 1910, 2840, 3820, 7640, 13561, 27122, 54244, 67805, 108488, 135610, 271220, 542440]

約数ペア:

[(1, 542440), (2, 271220), (4, 135610), (5, 108488), (8, 67805), (10, 54244), (20, 27122), (40, 13561), (71, 7640), (142, 3820), (191, 2840), (284, 1910), (355, 1528), (382, 1420), (568, 955), (710, 764)]