20518110

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{347}}^1$

素因数の和:439

約数の個数: 80

約数和(自身を含む): 56087856

約数和(自身を除く): 35569746

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 73, 81, 90, 135, 146, 162, 219, 270, 347, 365, 405, 438, 657, 694, 730, 810, 1041, 1095, 1314, 1735, 1971, 2082, 2190, 3123, 3285, 3470, 3942, 5205, 5913, 6246, 6570, 9369, 9855, 10410, 11826, 15615, 18738, 19710, 25331, 28107, 29565, 31230, 46845, 50662, 56214, 59130, 75993, 93690, 126655, 140535, 151986, 227979, 253310, 281070, 379965, 455958, 683937, 759930, 1139895, 1367874, 2051811, 2279790, 3419685, 4103622, 6839370, 10259055, 20518110]

約数ペア:

[(1, 20518110), (2, 10259055), (3, 6839370), (5, 4103622), (6, 3419685), (9, 2279790), (10, 2051811), (15, 1367874), (18, 1139895), (27, 759930), (30, 683937), (45, 455958), (54, 379965), (73, 281070), (81, 253310), (90, 227979), (135, 151986), (146, 140535), (162, 126655), (219, 93690), (270, 75993), (347, 59130), (365, 56214), (405, 50662), (438, 46845), (657, 31230), (694, 29565), (730, 28107), (810, 25331), (1041, 19710), (1095, 18738), (1314, 15615), (1735, 11826), (1971, 10410), (2082, 9855), (2190, 9369), (3123, 6570), (3285, 6246), (3470, 5913), (3942, 5205)]