12857440

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:224

約数の個数: 96

約数和(自身を含む): 33475680

約数和(自身を除く): 20618240

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 32, 34, 40, 58, 68, 80, 85, 116, 136, 145, 160, 163, 170, 232, 272, 290, 326, 340, 464, 493, 544, 580, 652, 680, 815, 928, 986, 1160, 1304, 1360, 1630, 1972, 2320, 2465, 2608, 2720, 2771, 3260, 3944, 4640, 4727, 4930, 5216, 5542, 6520, 7888, 9454, 9860, 11084, 13040, 13855, 15776, 18908, 19720, 22168, 23635, 26080, 27710, 37816, 39440, 44336, 47270, 55420, 75632, 78880, 80359, 88672, 94540, 110840, 151264, 160718, 189080, 221680, 321436, 378160, 401795, 443360, 642872, 756320, 803590, 1285744, 1607180, 2571488, 3214360, 6428720, 12857440]

約数ペア:

[(1, 12857440), (2, 6428720), (4, 3214360), (5, 2571488), (8, 1607180), (10, 1285744), (16, 803590), (17, 756320), (20, 642872), (29, 443360), (32, 401795), (34, 378160), (40, 321436), (58, 221680), (68, 189080), (80, 160718), (85, 151264), (116, 110840), (136, 94540), (145, 88672), (160, 80359), (163, 78880), (170, 75632), (232, 55420), (272, 47270), (290, 44336), (326, 39440), (340, 37816), (464, 27710), (493, 26080), (544, 23635), (580, 22168), (652, 19720), (680, 18908), (815, 15776), (928, 13855), (986, 13040), (1160, 11084), (1304, 9860), (1360, 9454), (1630, 7888), (1972, 6520), (2320, 5542), (2465, 5216), (2608, 4930), (2720, 4727), (2771, 4640), (3260, 3944)]