51361380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{40763}}^1$

素因数の和:40785

約数の個数: 72

約数和(自身を含む): 178057152

約数和(自身を除く): 126695772

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 40763, 81526, 122289, 163052, 203815, 244578, 285341, 366867, 407630, 489156, 570682, 611445, 733734, 815260, 856023, 1141364, 1222890, 1426705, 1467468, 1712046, 1834335, 2445780, 2568069, 2853410, 3424092, 3668670, 4280115, 5136138, 5706820, 7337340, 8560230, 10272276, 12840345, 17120460, 25680690, 51361380]

約数ペア:

[(1, 51361380), (2, 25680690), (3, 17120460), (4, 12840345), (5, 10272276), (6, 8560230), (7, 7337340), (9, 5706820), (10, 5136138), (12, 4280115), (14, 3668670), (15, 3424092), (18, 2853410), (20, 2568069), (21, 2445780), (28, 1834335), (30, 1712046), (35, 1467468), (36, 1426705), (42, 1222890), (45, 1141364), (60, 856023), (63, 815260), (70, 733734), (84, 611445), (90, 570682), (105, 489156), (126, 407630), (140, 366867), (180, 285341), (210, 244578), (252, 203815), (315, 163052), (420, 122289), (630, 81526), (1260, 40763)]