17838940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{167}}^1$

素因数の和:299

約数の個数: 72

約数和(自身を含む): 44241120

約数和(自身を除く): 26402180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 109, 140, 167, 196, 218, 245, 334, 436, 490, 545, 668, 763, 835, 980, 1090, 1169, 1526, 1670, 2180, 2338, 3052, 3340, 3815, 4676, 5341, 5845, 7630, 8183, 10682, 11690, 15260, 16366, 18203, 21364, 23380, 26705, 32732, 36406, 40915, 53410, 72812, 81830, 91015, 106820, 127421, 163660, 182030, 254842, 364060, 509684, 637105, 891947, 1274210, 1783894, 2548420, 3567788, 4459735, 8919470, 17838940]

約数ペア:

[(1, 17838940), (2, 8919470), (4, 4459735), (5, 3567788), (7, 2548420), (10, 1783894), (14, 1274210), (20, 891947), (28, 637105), (35, 509684), (49, 364060), (70, 254842), (98, 182030), (109, 163660), (140, 127421), (167, 106820), (196, 91015), (218, 81830), (245, 72812), (334, 53410), (436, 40915), (490, 36406), (545, 32732), (668, 26705), (763, 23380), (835, 21364), (980, 18203), (1090, 16366), (1169, 15260), (1526, 11690), (1670, 10682), (2180, 8183), (2338, 7630), (3052, 5845), (3340, 5341), (3815, 4676)]