25854280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{197}}^1$

素因数の和:418

約数の個数: 64

約数和(自身を含む): 62227440

約数和(自身を除く): 36373160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 193, 197, 340, 386, 394, 680, 772, 788, 965, 985, 1544, 1576, 1930, 1970, 3281, 3349, 3860, 3940, 6562, 6698, 7720, 7880, 13124, 13396, 16405, 16745, 26248, 26792, 32810, 33490, 38021, 65620, 66980, 76042, 131240, 133960, 152084, 190105, 304168, 380210, 646357, 760420, 1292714, 1520840, 2585428, 3231785, 5170856, 6463570, 12927140, 25854280]

約数ペア:

[(1, 25854280), (2, 12927140), (4, 6463570), (5, 5170856), (8, 3231785), (10, 2585428), (17, 1520840), (20, 1292714), (34, 760420), (40, 646357), (68, 380210), (85, 304168), (136, 190105), (170, 152084), (193, 133960), (197, 131240), (340, 76042), (386, 66980), (394, 65620), (680, 38021), (772, 33490), (788, 32810), (965, 26792), (985, 26248), (1544, 16745), (1576, 16405), (1930, 13396), (1970, 13124), (3281, 7880), (3349, 7720), (3860, 6698), (3940, 6562)]