213931920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{2693}}^1$

素因数の和:3040

約数の個数: 80

約数和(自身を含む): 665439552

約数和(自身を除く): 451507632

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 331, 662, 993, 1324, 1655, 1986, 2648, 2693, 3310, 3972, 4965, 5296, 5386, 6620, 7944, 8079, 9930, 10772, 13240, 13465, 15888, 16158, 19860, 21544, 26480, 26930, 32316, 39720, 40395, 43088, 53860, 64632, 79440, 80790, 107720, 129264, 161580, 215440, 323160, 646320, 891383, 1782766, 2674149, 3565532, 4456915, 5348298, 7131064, 8913830, 10696596, 13370745, 14262128, 17827660, 21393192, 26741490, 35655320, 42786384, 53482980, 71310640, 106965960, 213931920]

約数ペア:

[(1, 213931920), (2, 106965960), (3, 71310640), (4, 53482980), (5, 42786384), (6, 35655320), (8, 26741490), (10, 21393192), (12, 17827660), (15, 14262128), (16, 13370745), (20, 10696596), (24, 8913830), (30, 7131064), (40, 5348298), (48, 4456915), (60, 3565532), (80, 2674149), (120, 1782766), (240, 891383), (331, 646320), (662, 323160), (993, 215440), (1324, 161580), (1655, 129264), (1986, 107720), (2648, 80790), (2693, 79440), (3310, 64632), (3972, 53860), (4965, 43088), (5296, 40395), (5386, 39720), (6620, 32316), (7944, 26930), (8079, 26480), (9930, 21544), (10772, 19860), (13240, 16158), (13465, 15888)]