20704425

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{349}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 39580800

約数和(自身を除く): 18876375

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 113, 175, 339, 349, 525, 565, 791, 1047, 1695, 1745, 2373, 2443, 2825, 3955, 5235, 7329, 8475, 8725, 11865, 12215, 19775, 26175, 36645, 39437, 59325, 61075, 118311, 183225, 197185, 276059, 591555, 828177, 985925, 1380295, 2957775, 4140885, 6901475, 20704425]

約数ペア:

[(1, 20704425), (3, 6901475), (5, 4140885), (7, 2957775), (15, 1380295), (21, 985925), (25, 828177), (35, 591555), (75, 276059), (105, 197185), (113, 183225), (175, 118311), (339, 61075), (349, 59325), (525, 39437), (565, 36645), (791, 26175), (1047, 19775), (1695, 12215), (1745, 11865), (2373, 8725), (2443, 8475), (2825, 7329), (3955, 5235)]