12985720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2683}}^1$

素因数の和:2716

約数の個数: 48

約数和(自身を含む): 32127480

約数和(自身を除く): 19141760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 2683, 4840, 5366, 10732, 13415, 21464, 26830, 29513, 53660, 59026, 107320, 118052, 147565, 236104, 295130, 324643, 590260, 649286, 1180520, 1298572, 1623215, 2597144, 3246430, 6492860, 12985720]

約数ペア:

[(1, 12985720), (2, 6492860), (4, 3246430), (5, 2597144), (8, 1623215), (10, 1298572), (11, 1180520), (20, 649286), (22, 590260), (40, 324643), (44, 295130), (55, 236104), (88, 147565), (110, 118052), (121, 107320), (220, 59026), (242, 53660), (440, 29513), (484, 26830), (605, 21464), (968, 13415), (1210, 10732), (2420, 5366), (2683, 4840)]