87556980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{208469}}^1$

素因数の和:208488

約数の個数: 48

約数和(自身を含む): 280183680

約数和(自身を除く): 192626700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 208469, 416938, 625407, 833876, 1042345, 1250814, 1459283, 2084690, 2501628, 2918566, 3127035, 4169380, 4377849, 5837132, 6254070, 7296415, 8755698, 12508140, 14592830, 17511396, 21889245, 29185660, 43778490, 87556980]

約数ペア:

[(1, 87556980), (2, 43778490), (3, 29185660), (4, 21889245), (5, 17511396), (6, 14592830), (7, 12508140), (10, 8755698), (12, 7296415), (14, 6254070), (15, 5837132), (20, 4377849), (21, 4169380), (28, 3127035), (30, 2918566), (35, 2501628), (42, 2084690), (60, 1459283), (70, 1250814), (84, 1042345), (105, 833876), (140, 625407), (210, 416938), (420, 208469)]