20288100

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{9661}}^1$

素因数の和:9685

約数の個数: 72

約数和(自身を含む): 67092928

約数和(自身を除く): 46804828

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, 9661, 19322, 28983, 38644, 48305, 57966, 67627, 96610, 115932, 135254, 144915, 193220, 202881, 241525, 270508, 289830, 338135, 405762, 483050, 579660, 676270, 724575, 811524, 966100, 1014405, 1352540, 1449150, 1690675, 2028810, 2898300, 3381350, 4057620, 5072025, 6762700, 10144050, 20288100]

約数ペア:

[(1, 20288100), (2, 10144050), (3, 6762700), (4, 5072025), (5, 4057620), (6, 3381350), (7, 2898300), (10, 2028810), (12, 1690675), (14, 1449150), (15, 1352540), (20, 1014405), (21, 966100), (25, 811524), (28, 724575), (30, 676270), (35, 579660), (42, 483050), (50, 405762), (60, 338135), (70, 289830), (75, 270508), (84, 241525), (100, 202881), (105, 193220), (140, 144915), (150, 135254), (175, 115932), (210, 96610), (300, 67627), (350, 57966), (420, 48305), (525, 38644), (700, 28983), (1050, 19322), (2100, 9661)]