81367020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{64577}}^1$

素因数の和:64599

約数の個数: 72

約数和(自身を含む): 282076704

約数和(自身を除く): 200709684

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, 64577, 129154, 193731, 258308, 322885, 387462, 452039, 581193, 645770, 774924, 904078, 968655, 1162386, 1291540, 1356117, 1808156, 1937310, 2260195, 2324772, 2712234, 2905965, 3874620, 4068351, 4520390, 5424468, 5811930, 6780585, 8136702, 9040780, 11623860, 13561170, 16273404, 20341755, 27122340, 40683510, 81367020]

約数ペア:

[(1, 81367020), (2, 40683510), (3, 27122340), (4, 20341755), (5, 16273404), (6, 13561170), (7, 11623860), (9, 9040780), (10, 8136702), (12, 6780585), (14, 5811930), (15, 5424468), (18, 4520390), (20, 4068351), (21, 3874620), (28, 2905965), (30, 2712234), (35, 2324772), (36, 2260195), (42, 1937310), (45, 1808156), (60, 1356117), (63, 1291540), (70, 1162386), (84, 968655), (90, 904078), (105, 774924), (126, 645770), (140, 581193), (180, 452039), (210, 387462), (252, 322885), (315, 258308), (420, 193731), (630, 129154), (1260, 64577)]