80925040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:207

約数の個数: 160

約数和(自身を含む): 230270976

約数和(自身を除く): 149345936

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 61, 70, 80, 92, 103, 112, 115, 122, 140, 161, 184, 206, 230, 244, 280, 305, 322, 368, 412, 427, 460, 488, 515, 560, 610, 644, 721, 805, 824, 854, 920, 976, 1030, 1220, 1288, 1403, 1442, 1610, 1648, 1708, 1840, 2060, 2135, 2369, 2440, 2576, 2806, 2884, 3220, 3416, 3605, 4120, 4270, 4738, 4880, 5612, 5768, 6283, 6440, 6832, 7015, 7210, 8240, 8540, 9476, 9821, 11224, 11536, 11845, 12566, 12880, 14030, 14420, 16583, 17080, 18952, 19642, 22448, 23690, 25132, 28060, 28840, 31415, 33166, 34160, 37904, 39284, 43981, 47380, 49105, 50264, 56120, 57680, 62830, 66332, 78568, 82915, 87962, 94760, 98210, 100528, 112240, 125660, 132664, 144509, 157136, 165830, 175924, 189520, 196420, 219905, 251320, 265328, 289018, 331660, 351848, 392840, 439810, 502640, 578036, 663320, 703696, 722545, 785680, 879620, 1011563, 1156072, 1326640, 1445090, 1759240, 2023126, 2312144, 2890180, 3518480, 4046252, 5057815, 5780360, 8092504, 10115630, 11560720, 16185008, 20231260, 40462520, 80925040]

約数ペア:

[(1, 80925040), (2, 40462520), (4, 20231260), (5, 16185008), (7, 11560720), (8, 10115630), (10, 8092504), (14, 5780360), (16, 5057815), (20, 4046252), (23, 3518480), (28, 2890180), (35, 2312144), (40, 2023126), (46, 1759240), (56, 1445090), (61, 1326640), (70, 1156072), (80, 1011563), (92, 879620), (103, 785680), (112, 722545), (115, 703696), (122, 663320), (140, 578036), (161, 502640), (184, 439810), (206, 392840), (230, 351848), (244, 331660), (280, 289018), (305, 265328), (322, 251320), (368, 219905), (412, 196420), (427, 189520), (460, 175924), (488, 165830), (515, 157136), (560, 144509), (610, 132664), (644, 125660), (721, 112240), (805, 100528), (824, 98210), (854, 94760), (920, 87962), (976, 82915), (1030, 78568), (1220, 66332), (1288, 62830), (1403, 57680), (1442, 56120), (1610, 50264), (1648, 49105), (1708, 47380), (1840, 43981), (2060, 39284), (2135, 37904), (2369, 34160), (2440, 33166), (2576, 31415), (2806, 28840), (2884, 28060), (3220, 25132), (3416, 23690), (3605, 22448), (4120, 19642), (4270, 18952), (4738, 17080), (4880, 16583), (5612, 14420), (5768, 14030), (6283, 12880), (6440, 12566), (6832, 11845), (7015, 11536), (7210, 11224), (8240, 9821), (8540, 9476)]