2018794760

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1\times {\mathrm{4493}}^1$

素因数の和:4790

約数の個数: 64

約数和(自身を含む): 4659379200

約数和(自身を除く): 2640584440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 239, 376, 470, 478, 940, 956, 1195, 1880, 1912, 2390, 4493, 4780, 8986, 9560, 11233, 17972, 22465, 22466, 35944, 44930, 44932, 56165, 89860, 89864, 112330, 179720, 211171, 224660, 422342, 449320, 844684, 1055855, 1073827, 1689368, 2111710, 2147654, 4223420, 4295308, 5369135, 8446840, 8590616, 10738270, 21476540, 42953080, 50469869, 100939738, 201879476, 252349345, 403758952, 504698690, 1009397380, 2018794760]

約数ペア:

[(1, 2018794760), (2, 1009397380), (4, 504698690), (5, 403758952), (8, 252349345), (10, 201879476), (20, 100939738), (40, 50469869), (47, 42953080), (94, 21476540), (188, 10738270), (235, 8590616), (239, 8446840), (376, 5369135), (470, 4295308), (478, 4223420), (940, 2147654), (956, 2111710), (1195, 1689368), (1880, 1073827), (1912, 1055855), (2390, 844684), (4493, 449320), (4780, 422342), (8986, 224660), (9560, 211171), (11233, 179720), (17972, 112330), (22465, 89864), (22466, 89860), (35944, 56165), (44930, 44932)]