81419856

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{547}}^1$

素因数の和:1008

約数の個数: 80

約数和(自身を含む): 241365504

約数和(自身を除く): 159945648

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 443, 547, 886, 1094, 1329, 1641, 1772, 2188, 2658, 3101, 3282, 3544, 3829, 4376, 5316, 6202, 6564, 7088, 7658, 8752, 9303, 10632, 11487, 12404, 13128, 15316, 18606, 21264, 22974, 24808, 26256, 30632, 37212, 45948, 49616, 61264, 74424, 91896, 148848, 183792, 242321, 484642, 726963, 969284, 1453926, 1696247, 1938568, 2907852, 3392494, 3877136, 5088741, 5815704, 6784988, 10177482, 11631408, 13569976, 20354964, 27139952, 40709928, 81419856]

約数ペア:

[(1, 81419856), (2, 40709928), (3, 27139952), (4, 20354964), (6, 13569976), (7, 11631408), (8, 10177482), (12, 6784988), (14, 5815704), (16, 5088741), (21, 3877136), (24, 3392494), (28, 2907852), (42, 1938568), (48, 1696247), (56, 1453926), (84, 969284), (112, 726963), (168, 484642), (336, 242321), (443, 183792), (547, 148848), (886, 91896), (1094, 74424), (1329, 61264), (1641, 49616), (1772, 45948), (2188, 37212), (2658, 30632), (3101, 26256), (3282, 24808), (3544, 22974), (3829, 21264), (4376, 18606), (5316, 15316), (6202, 13128), (6564, 12404), (7088, 11487), (7658, 10632), (8752, 9303)]