1388100

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{661}}^1$

素因数の和:685

約数の個数: 72

約数和(自身を含む): 4596928

約数和(自身を除く): 3208828

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 661, 700, 1050, 1322, 1983, 2100, 2644, 3305, 3966, 4627, 6610, 7932, 9254, 9915, 13220, 13881, 16525, 18508, 19830, 23135, 27762, 33050, 39660, 46270, 49575, 55524, 66100, 69405, 92540, 99150, 115675, 138810, 198300, 231350, 277620, 347025, 462700, 694050, 1388100]

約数ペア:

[(1, 1388100), (2, 694050), (3, 462700), (4, 347025), (5, 277620), (6, 231350), (7, 198300), (10, 138810), (12, 115675), (14, 99150), (15, 92540), (20, 69405), (21, 66100), (25, 55524), (28, 49575), (30, 46270), (35, 39660), (42, 33050), (50, 27762), (60, 23135), (70, 19830), (75, 18508), (84, 16525), (100, 13881), (105, 13220), (140, 9915), (150, 9254), (175, 7932), (210, 6610), (300, 4627), (350, 3966), (420, 3305), (525, 2644), (661, 2100), (700, 1983), (1050, 1322)]