81407340

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{64609}}^1$

素因数の和:64631

約数の個数: 72

約数和(自身を含む): 282216480

約数和(自身を除く): 200809140

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, 64609, 129218, 193827, 258436, 323045, 387654, 452263, 581481, 646090, 775308, 904526, 969135, 1162962, 1292180, 1356789, 1809052, 1938270, 2261315, 2325924, 2713578, 2907405, 3876540, 4070367, 4522630, 5427156, 5814810, 6783945, 8140734, 9045260, 11629620, 13567890, 16281468, 20351835, 27135780, 40703670, 81407340]

約数ペア:

[(1, 81407340), (2, 40703670), (3, 27135780), (4, 20351835), (5, 16281468), (6, 13567890), (7, 11629620), (9, 9045260), (10, 8140734), (12, 6783945), (14, 5814810), (15, 5427156), (18, 4522630), (20, 4070367), (21, 3876540), (28, 2907405), (30, 2713578), (35, 2325924), (36, 2261315), (42, 1938270), (45, 1809052), (60, 1356789), (63, 1292180), (70, 1162962), (84, 969135), (90, 904526), (105, 775308), (126, 646090), (140, 581481), (180, 452263), (210, 387654), (252, 323045), (315, 258436), (420, 193827), (630, 129218), (1260, 64609)]