20105700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{2311}}^1$

素因数の和:2357

約数の個数: 72

約数和(自身を含む): 60204480

約数和(自身を除く): 40098780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 29, 30, 50, 58, 60, 75, 87, 100, 116, 145, 150, 174, 290, 300, 348, 435, 580, 725, 870, 1450, 1740, 2175, 2311, 2900, 4350, 4622, 6933, 8700, 9244, 11555, 13866, 23110, 27732, 34665, 46220, 57775, 67019, 69330, 115550, 134038, 138660, 173325, 201057, 231100, 268076, 335095, 346650, 402114, 670190, 693300, 804228, 1005285, 1340380, 1675475, 2010570, 3350950, 4021140, 5026425, 6701900, 10052850, 20105700]

約数ペア:

[(1, 20105700), (2, 10052850), (3, 6701900), (4, 5026425), (5, 4021140), (6, 3350950), (10, 2010570), (12, 1675475), (15, 1340380), (20, 1005285), (25, 804228), (29, 693300), (30, 670190), (50, 402114), (58, 346650), (60, 335095), (75, 268076), (87, 231100), (100, 201057), (116, 173325), (145, 138660), (150, 134038), (174, 115550), (290, 69330), (300, 67019), (348, 57775), (435, 46220), (580, 34665), (725, 27732), (870, 23110), (1450, 13866), (1740, 11555), (2175, 9244), (2311, 8700), (2900, 6933), (4350, 4622)]