1338778880

素因数分解:

$2^8\times 5^1\times {\mathrm{167}}^1\times {\mathrm{6263}}^1$

素因数の和:6451

約数の個数: 72

約数和(自身を含む): 3226511232

約数和(自身を除く): 1887732352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 167, 256, 320, 334, 640, 668, 835, 1280, 1336, 1670, 2672, 3340, 5344, 6263, 6680, 10688, 12526, 13360, 21376, 25052, 26720, 31315, 42752, 50104, 53440, 62630, 100208, 106880, 125260, 200416, 213760, 250520, 400832, 501040, 801664, 1002080, 1045921, 1603328, 2004160, 2091842, 4008320, 4183684, 5229605, 8016640, 8367368, 10459210, 16734736, 20918420, 33469472, 41836840, 66938944, 83673680, 133877888, 167347360, 267755776, 334694720, 669389440, 1338778880]

約数ペア:

[(1, 1338778880), (2, 669389440), (4, 334694720), (5, 267755776), (8, 167347360), (10, 133877888), (16, 83673680), (20, 66938944), (32, 41836840), (40, 33469472), (64, 20918420), (80, 16734736), (128, 10459210), (160, 8367368), (167, 8016640), (256, 5229605), (320, 4183684), (334, 4008320), (640, 2091842), (668, 2004160), (835, 1603328), (1280, 1045921), (1336, 1002080), (1670, 801664), (2672, 501040), (3340, 400832), (5344, 250520), (6263, 213760), (6680, 200416), (10688, 125260), (12526, 106880), (13360, 100208), (21376, 62630), (25052, 53440), (26720, 50104), (31315, 42752)]