20343520

素因数分解:

$2^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2399}}^1$

素因数の和:2467

約数の個数: 48

約数和(自身を含む): 48988800

約数和(自身を除く): 28645280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 80, 106, 160, 212, 265, 424, 530, 848, 1060, 1696, 2120, 2399, 4240, 4798, 8480, 9596, 11995, 19192, 23990, 38384, 47980, 76768, 95960, 127147, 191920, 254294, 383840, 508588, 635735, 1017176, 1271470, 2034352, 2542940, 4068704, 5085880, 10171760, 20343520]

約数ペア:

[(1, 20343520), (2, 10171760), (4, 5085880), (5, 4068704), (8, 2542940), (10, 2034352), (16, 1271470), (20, 1017176), (32, 635735), (40, 508588), (53, 383840), (80, 254294), (106, 191920), (160, 127147), (212, 95960), (265, 76768), (424, 47980), (530, 38384), (848, 23990), (1060, 19192), (1696, 11995), (2120, 9596), (2399, 8480), (4240, 4798)]