213560920

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{27953}}^1$

素因数の和:28155

約数の個数: 32

約数和(自身を含む): 483045120

約数和(自身を除く): 269484200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 3820, 7640, 27953, 55906, 111812, 139765, 223624, 279530, 559060, 1118120, 5339023, 10678046, 21356092, 26695115, 42712184, 53390230, 106780460, 213560920]

約数ペア:

[(1, 213560920), (2, 106780460), (4, 53390230), (5, 42712184), (8, 26695115), (10, 21356092), (20, 10678046), (40, 5339023), (191, 1118120), (382, 559060), (764, 279530), (955, 223624), (1528, 139765), (1910, 111812), (3820, 55906), (7640, 27953)]