142960020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{340381}}^1$

素因数の和:340400

約数の個数: 48

約数和(自身を含む): 457473408

約数和(自身を除く): 314513388

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 340381, 680762, 1021143, 1361524, 1701905, 2042286, 2382667, 3403810, 4084572, 4765334, 5105715, 6807620, 7148001, 9530668, 10211430, 11913335, 14296002, 20422860, 23826670, 28592004, 35740005, 47653340, 71480010, 142960020]

約数ペア:

[(1, 142960020), (2, 71480010), (3, 47653340), (4, 35740005), (5, 28592004), (6, 23826670), (7, 20422860), (10, 14296002), (12, 11913335), (14, 10211430), (15, 9530668), (20, 7148001), (21, 6807620), (28, 5105715), (30, 4765334), (35, 4084572), (42, 3403810), (60, 2382667), (70, 2042286), (84, 1701905), (105, 1361524), (140, 1021143), (210, 680762), (420, 340381)]