20931960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{24919}}^1$

素因数の和:24940

約数の個数: 64

約数和(自身を含む): 71769600

約数和(自身を除く): 50837640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 24919, 49838, 74757, 99676, 124595, 149514, 174433, 199352, 249190, 299028, 348866, 373785, 498380, 523299, 598056, 697732, 747570, 872165, 996760, 1046598, 1395464, 1495140, 1744330, 2093196, 2616495, 2990280, 3488660, 4186392, 5232990, 6977320, 10465980, 20931960]

約数ペア:

[(1, 20931960), (2, 10465980), (3, 6977320), (4, 5232990), (5, 4186392), (6, 3488660), (7, 2990280), (8, 2616495), (10, 2093196), (12, 1744330), (14, 1495140), (15, 1395464), (20, 1046598), (21, 996760), (24, 872165), (28, 747570), (30, 697732), (35, 598056), (40, 523299), (42, 498380), (56, 373785), (60, 348866), (70, 299028), (84, 249190), (105, 199352), (120, 174433), (140, 149514), (168, 124595), (210, 99676), (280, 74757), (420, 49838), (840, 24919)]