81986100

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{39041}}^1$

素因数の和:39065

約数の個数: 72

約数和(自身を含む): 271107648

約数和(自身を除く): 189121548

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, 700, 1050, 2100, 39041, 78082, 117123, 156164, 195205, 234246, 273287, 390410, 468492, 546574, 585615, 780820, 819861, 976025, 1093148, 1171230, 1366435, 1639722, 1952050, 2342460, 2732870, 2928075, 3279444, 3904100, 4099305, 5465740, 5856150, 6832175, 8198610, 11712300, 13664350, 16397220, 20496525, 27328700, 40993050, 81986100]

約数ペア:

[(1, 81986100), (2, 40993050), (3, 27328700), (4, 20496525), (5, 16397220), (6, 13664350), (7, 11712300), (10, 8198610), (12, 6832175), (14, 5856150), (15, 5465740), (20, 4099305), (21, 3904100), (25, 3279444), (28, 2928075), (30, 2732870), (35, 2342460), (42, 1952050), (50, 1639722), (60, 1366435), (70, 1171230), (75, 1093148), (84, 976025), (100, 819861), (105, 780820), (140, 585615), (150, 546574), (175, 468492), (210, 390410), (300, 273287), (350, 234246), (420, 195205), (525, 156164), (700, 117123), (1050, 78082), (2100, 39041)]