81659872

素因数分解:

$2^5\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2741}}^1$

素因数の和:2784

約数の個数: 72

約数和(自身を含む): 196930440

約数和(自身を除く): 115270568

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 49, 56, 76, 98, 112, 133, 152, 196, 224, 266, 304, 392, 532, 608, 784, 931, 1064, 1568, 1862, 2128, 2741, 3724, 4256, 5482, 7448, 10964, 14896, 19187, 21928, 29792, 38374, 43856, 52079, 76748, 87712, 104158, 134309, 153496, 208316, 268618, 306992, 364553, 416632, 537236, 613984, 729106, 833264, 1074472, 1458212, 1666528, 2148944, 2551871, 2916424, 4297888, 5103742, 5832848, 10207484, 11665696, 20414968, 40829936, 81659872]

約数ペア:

[(1, 81659872), (2, 40829936), (4, 20414968), (7, 11665696), (8, 10207484), (14, 5832848), (16, 5103742), (19, 4297888), (28, 2916424), (32, 2551871), (38, 2148944), (49, 1666528), (56, 1458212), (76, 1074472), (98, 833264), (112, 729106), (133, 613984), (152, 537236), (196, 416632), (224, 364553), (266, 306992), (304, 268618), (392, 208316), (532, 153496), (608, 134309), (784, 104158), (931, 87712), (1064, 76748), (1568, 52079), (1862, 43856), (2128, 38374), (2741, 29792), (3724, 21928), (4256, 19187), (5482, 14896), (7448, 10964)]