20458560

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1$

素因数の和:332

約数の個数: 112

約数和(自身を含む): 65909952

約数和(自身を除く): 45451392

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 101, 120, 160, 192, 202, 211, 240, 303, 320, 404, 422, 480, 505, 606, 633, 808, 844, 960, 1010, 1055, 1212, 1266, 1515, 1616, 1688, 2020, 2110, 2424, 2532, 3030, 3165, 3232, 3376, 4040, 4220, 4848, 5064, 6060, 6330, 6464, 6752, 8080, 8440, 9696, 10128, 12120, 12660, 13504, 16160, 16880, 19392, 20256, 21311, 24240, 25320, 32320, 33760, 40512, 42622, 48480, 50640, 63933, 67520, 85244, 96960, 101280, 106555, 127866, 170488, 202560, 213110, 255732, 319665, 340976, 426220, 511464, 639330, 681952, 852440, 1022928, 1278660, 1363904, 1704880, 2045856, 2557320, 3409760, 4091712, 5114640, 6819520, 10229280, 20458560]

約数ペア:

[(1, 20458560), (2, 10229280), (3, 6819520), (4, 5114640), (5, 4091712), (6, 3409760), (8, 2557320), (10, 2045856), (12, 1704880), (15, 1363904), (16, 1278660), (20, 1022928), (24, 852440), (30, 681952), (32, 639330), (40, 511464), (48, 426220), (60, 340976), (64, 319665), (80, 255732), (96, 213110), (101, 202560), (120, 170488), (160, 127866), (192, 106555), (202, 101280), (211, 96960), (240, 85244), (303, 67520), (320, 63933), (404, 50640), (422, 48480), (480, 42622), (505, 40512), (606, 33760), (633, 32320), (808, 25320), (844, 24240), (960, 21311), (1010, 20256), (1055, 19392), (1212, 16880), (1266, 16160), (1515, 13504), (1616, 12660), (1688, 12120), (2020, 10128), (2110, 9696), (2424, 8440), (2532, 8080), (3030, 6752), (3165, 6464), (3232, 6330), (3376, 6060), (4040, 5064), (4220, 4848)]