28231120

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{229}}^1$

素因数の和:332

約数の個数: 80

約数和(自身を含む): 69816960

約数和(自身を除く): 41585840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 67, 80, 92, 115, 134, 184, 229, 230, 268, 335, 368, 458, 460, 536, 670, 916, 920, 1072, 1145, 1340, 1541, 1832, 1840, 2290, 2680, 3082, 3664, 4580, 5267, 5360, 6164, 7705, 9160, 10534, 12328, 15343, 15410, 18320, 21068, 24656, 26335, 30686, 30820, 42136, 52670, 61372, 61640, 76715, 84272, 105340, 122744, 123280, 153430, 210680, 245488, 306860, 352889, 421360, 613720, 705778, 1227440, 1411556, 1764445, 2823112, 3528890, 5646224, 7057780, 14115560, 28231120]

約数ペア:

[(1, 28231120), (2, 14115560), (4, 7057780), (5, 5646224), (8, 3528890), (10, 2823112), (16, 1764445), (20, 1411556), (23, 1227440), (40, 705778), (46, 613720), (67, 421360), (80, 352889), (92, 306860), (115, 245488), (134, 210680), (184, 153430), (229, 123280), (230, 122744), (268, 105340), (335, 84272), (368, 76715), (458, 61640), (460, 61372), (536, 52670), (670, 42136), (916, 30820), (920, 30686), (1072, 26335), (1145, 24656), (1340, 21068), (1541, 18320), (1832, 15410), (1840, 15343), (2290, 12328), (2680, 10534), (3082, 9160), (3664, 7705), (4580, 6164), (5267, 5360)]