20686985025

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{916367}}^1$

素因数の和:916430

約数の個数: 48

約数和(自身を含む): 39997630464

約数和(自身を除く): 19310645439

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 43, 75, 105, 129, 175, 215, 301, 525, 645, 903, 1075, 1505, 3225, 4515, 7525, 22575, 916367, 2749101, 4581835, 6414569, 13745505, 19243707, 22909175, 32072845, 39403781, 68727525, 96218535, 118211343, 160364225, 197018905, 275826467, 481092675, 591056715, 827479401, 985094525, 1379132335, 2955283575, 4137397005, 6895661675, 20686985025]

約数ペア:

[(1, 20686985025), (3, 6895661675), (5, 4137397005), (7, 2955283575), (15, 1379132335), (21, 985094525), (25, 827479401), (35, 591056715), (43, 481092675), (75, 275826467), (105, 197018905), (129, 160364225), (175, 118211343), (215, 96218535), (301, 68727525), (525, 39403781), (645, 32072845), (903, 22909175), (1075, 19243707), (1505, 13745505), (3225, 6414569), (4515, 4581835), (7525, 2749101), (22575, 916367)]