81361456

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{383}}^1$

素因数の和:490

約数の個数: 80

約数和(自身を含む): 185131008

約数和(自身を除く): 103769552

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 71, 88, 136, 142, 176, 187, 272, 284, 374, 383, 568, 748, 766, 781, 1136, 1207, 1496, 1532, 1562, 2414, 2992, 3064, 3124, 4213, 4828, 6128, 6248, 6511, 8426, 9656, 12496, 13022, 13277, 16852, 19312, 26044, 26554, 27193, 33704, 52088, 53108, 54386, 67408, 71621, 104176, 106216, 108772, 143242, 212432, 217544, 286484, 299123, 435088, 462281, 572968, 598246, 924562, 1145936, 1196492, 1849124, 2392984, 3698248, 4785968, 5085091, 7396496, 10170182, 20340364, 40680728, 81361456]

約数ペア:

[(1, 81361456), (2, 40680728), (4, 20340364), (8, 10170182), (11, 7396496), (16, 5085091), (17, 4785968), (22, 3698248), (34, 2392984), (44, 1849124), (68, 1196492), (71, 1145936), (88, 924562), (136, 598246), (142, 572968), (176, 462281), (187, 435088), (272, 299123), (284, 286484), (374, 217544), (383, 212432), (568, 143242), (748, 108772), (766, 106216), (781, 104176), (1136, 71621), (1207, 67408), (1496, 54386), (1532, 53108), (1562, 52088), (2414, 33704), (2992, 27193), (3064, 26554), (3124, 26044), (4213, 19312), (4828, 16852), (6128, 13277), (6248, 13022), (6511, 12496), (8426, 9656)]