639240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{761}}^1$

素因数の和:782

約数の個数: 64

約数和(自身を含む): 2194560

約数和(自身を除く): 1555320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 761, 840, 1522, 2283, 3044, 3805, 4566, 5327, 6088, 7610, 9132, 10654, 11415, 15220, 15981, 18264, 21308, 22830, 26635, 30440, 31962, 42616, 45660, 53270, 63924, 79905, 91320, 106540, 127848, 159810, 213080, 319620, 639240]

約数ペア:

[(1, 639240), (2, 319620), (3, 213080), (4, 159810), (5, 127848), (6, 106540), (7, 91320), (8, 79905), (10, 63924), (12, 53270), (14, 45660), (15, 42616), (20, 31962), (21, 30440), (24, 26635), (28, 22830), (30, 21308), (35, 18264), (40, 15981), (42, 15220), (56, 11415), (60, 10654), (70, 9132), (84, 7610), (105, 6088), (120, 5327), (140, 4566), (168, 3805), (210, 3044), (280, 2283), (420, 1522), (761, 840)]