53430340

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 114960384

約数和(自身を除く): 61530044

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 191, 197, 284, 355, 382, 394, 710, 764, 788, 955, 985, 1420, 1910, 1970, 3820, 3940, 13561, 13987, 27122, 27974, 37627, 54244, 55948, 67805, 69935, 75254, 135610, 139870, 150508, 188135, 271220, 279740, 376270, 752540, 2671517, 5343034, 10686068, 13357585, 26715170, 53430340]

約数ペア:

[(1, 53430340), (2, 26715170), (4, 13357585), (5, 10686068), (10, 5343034), (20, 2671517), (71, 752540), (142, 376270), (191, 279740), (197, 271220), (284, 188135), (355, 150508), (382, 139870), (394, 135610), (710, 75254), (764, 69935), (788, 67805), (955, 55948), (985, 54244), (1420, 37627), (1910, 27974), (1970, 27122), (3820, 13987), (3940, 13561)]