8140020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19381}}^1$

素因数の和:19400

約数の個数: 48

約数和(自身を含む): 26049408

約数和(自身を除く): 17909388

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, 19381, 38762, 58143, 77524, 96905, 116286, 135667, 193810, 232572, 271334, 290715, 387620, 407001, 542668, 581430, 678335, 814002, 1162860, 1356670, 1628004, 2035005, 2713340, 4070010, 8140020]

約数ペア:

[(1, 8140020), (2, 4070010), (3, 2713340), (4, 2035005), (5, 1628004), (6, 1356670), (7, 1162860), (10, 814002), (12, 678335), (14, 581430), (15, 542668), (20, 407001), (21, 387620), (28, 290715), (30, 271334), (35, 232572), (42, 193810), (60, 135667), (70, 116286), (84, 96905), (105, 77524), (140, 58143), (210, 38762), (420, 19381)]