20790100

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:217

約数の個数: 72

約数和(自身を含む): 47809440

約数和(自身を除く): 27019340

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 67, 100, 107, 116, 134, 145, 214, 268, 290, 335, 428, 535, 580, 670, 725, 1070, 1340, 1450, 1675, 1943, 2140, 2675, 2900, 3103, 3350, 3886, 5350, 6206, 6700, 7169, 7772, 9715, 10700, 12412, 14338, 15515, 19430, 28676, 31030, 35845, 38860, 48575, 62060, 71690, 77575, 97150, 143380, 155150, 179225, 194300, 207901, 310300, 358450, 415802, 716900, 831604, 1039505, 2079010, 4158020, 5197525, 10395050, 20790100]

約数ペア:

[(1, 20790100), (2, 10395050), (4, 5197525), (5, 4158020), (10, 2079010), (20, 1039505), (25, 831604), (29, 716900), (50, 415802), (58, 358450), (67, 310300), (100, 207901), (107, 194300), (116, 179225), (134, 155150), (145, 143380), (214, 97150), (268, 77575), (290, 71690), (335, 62060), (428, 48575), (535, 38860), (580, 35845), (670, 31030), (725, 28676), (1070, 19430), (1340, 15515), (1450, 14338), (1675, 12412), (1943, 10700), (2140, 9715), (2675, 7772), (2900, 7169), (3103, 6700), (3350, 6206), (3886, 5350)]