519992020

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{641}}^1\times {\mathrm{863}}^1$

素因数の和:1560

約数の個数: 48

約数和(自身を含む): 1118251008

約数和(自身を除く): 598258988

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 641, 863, 940, 1282, 1726, 2564, 3205, 3452, 4315, 6410, 8630, 12820, 17260, 30127, 40561, 60254, 81122, 120508, 150635, 162244, 202805, 301270, 405610, 553183, 602540, 811220, 1106366, 2212732, 2765915, 5531830, 11063660, 25999601, 51999202, 103998404, 129998005, 259996010, 519992020]

約数ペア:

[(1, 519992020), (2, 259996010), (4, 129998005), (5, 103998404), (10, 51999202), (20, 25999601), (47, 11063660), (94, 5531830), (188, 2765915), (235, 2212732), (470, 1106366), (641, 811220), (863, 602540), (940, 553183), (1282, 405610), (1726, 301270), (2564, 202805), (3205, 162244), (3452, 150635), (4315, 120508), (6410, 81122), (8630, 60254), (12820, 40561), (17260, 30127)]