20258070

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{13781}}^1$

素因数の和:13805

約数の個数: 48

約数和(自身を含む): 56561328

約数和(自身を除く): 36303258

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 13781, 27562, 41343, 68905, 82686, 96467, 137810, 192934, 206715, 289401, 413430, 482335, 578802, 675269, 964670, 1350538, 1447005, 2025807, 2894010, 3376345, 4051614, 6752690, 10129035, 20258070]

約数ペア:

[(1, 20258070), (2, 10129035), (3, 6752690), (5, 4051614), (6, 3376345), (7, 2894010), (10, 2025807), (14, 1447005), (15, 1350538), (21, 964670), (30, 675269), (35, 578802), (42, 482335), (49, 413430), (70, 289401), (98, 206715), (105, 192934), (147, 137810), (210, 96467), (245, 82686), (294, 68905), (490, 41343), (735, 27562), (1470, 13781)]