20311920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28211}}^1$

素因数の和:28230

約数の個数: 60

約数和(自身を含む): 68216616

約数和(自身を除く): 47904696

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 28211, 56422, 84633, 112844, 141055, 169266, 225688, 253899, 282110, 338532, 423165, 451376, 507798, 564220, 677064, 846330, 1015596, 1128440, 1269495, 1354128, 1692660, 2031192, 2256880, 2538990, 3385320, 4062384, 5077980, 6770640, 10155960, 20311920]

約数ペア:

[(1, 20311920), (2, 10155960), (3, 6770640), (4, 5077980), (5, 4062384), (6, 3385320), (8, 2538990), (9, 2256880), (10, 2031192), (12, 1692660), (15, 1354128), (16, 1269495), (18, 1128440), (20, 1015596), (24, 846330), (30, 677064), (36, 564220), (40, 507798), (45, 451376), (48, 423165), (60, 338532), (72, 282110), (80, 253899), (90, 225688), (120, 169266), (144, 141055), (180, 112844), (240, 84633), (360, 56422), (720, 28211)]