78639760

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{541}}^1$

素因数の和:656

約数の個数: 80

約数和(自身を含む): 193559040

約数和(自身を除く): 114919280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 79, 80, 92, 115, 158, 184, 230, 316, 368, 395, 460, 541, 632, 790, 920, 1082, 1264, 1580, 1817, 1840, 2164, 2705, 3160, 3634, 4328, 5410, 6320, 7268, 8656, 9085, 10820, 12443, 14536, 18170, 21640, 24886, 29072, 36340, 42739, 43280, 49772, 62215, 72680, 85478, 99544, 124430, 145360, 170956, 199088, 213695, 248860, 341912, 427390, 497720, 683824, 854780, 982997, 995440, 1709560, 1965994, 3419120, 3931988, 4914985, 7863976, 9829970, 15727952, 19659940, 39319880, 78639760]

約数ペア:

[(1, 78639760), (2, 39319880), (4, 19659940), (5, 15727952), (8, 9829970), (10, 7863976), (16, 4914985), (20, 3931988), (23, 3419120), (40, 1965994), (46, 1709560), (79, 995440), (80, 982997), (92, 854780), (115, 683824), (158, 497720), (184, 427390), (230, 341912), (316, 248860), (368, 213695), (395, 199088), (460, 170956), (541, 145360), (632, 124430), (790, 99544), (920, 85478), (1082, 72680), (1264, 62215), (1580, 49772), (1817, 43280), (1840, 42739), (2164, 36340), (2705, 29072), (3160, 24886), (3634, 21640), (4328, 18170), (5410, 14536), (6320, 12443), (7268, 10820), (8656, 9085)]