200080020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{476381}}^1$

素因数の和:476400

約数の個数: 48

約数和(自身を含む): 640257408

約数和(自身を除く): 440177388

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, 476381, 952762, 1429143, 1905524, 2381905, 2858286, 3334667, 4763810, 5716572, 6669334, 7145715, 9527620, 10004001, 13338668, 14291430, 16673335, 20008002, 28582860, 33346670, 40016004, 50020005, 66693340, 100040010, 200080020]

約数ペア:

[(1, 200080020), (2, 100040010), (3, 66693340), (4, 50020005), (5, 40016004), (6, 33346670), (7, 28582860), (10, 20008002), (12, 16673335), (14, 14291430), (15, 13338668), (20, 10004001), (21, 9527620), (28, 7145715), (30, 6669334), (35, 5716572), (42, 4763810), (60, 3334667), (70, 2858286), (84, 2381905), (105, 1905524), (140, 1429143), (210, 952762), (420, 476381)]