18259496

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:186

約数の個数: 64

約数和(自身を含む): 38568960

約数和(自身を除く): 20309464

約数列:

[1, 2, 4, 8, 17, 31, 34, 61, 62, 68, 71, 122, 124, 136, 142, 244, 248, 284, 488, 527, 568, 1037, 1054, 1207, 1891, 2074, 2108, 2201, 2414, 3782, 4148, 4216, 4331, 4402, 4828, 7564, 8296, 8662, 8804, 9656, 15128, 17324, 17608, 32147, 34648, 37417, 64294, 73627, 74834, 128588, 134261, 147254, 149668, 257176, 268522, 294508, 299336, 537044, 589016, 1074088, 2282437, 4564874, 9129748, 18259496]

約数ペア:

[(1, 18259496), (2, 9129748), (4, 4564874), (8, 2282437), (17, 1074088), (31, 589016), (34, 537044), (61, 299336), (62, 294508), (68, 268522), (71, 257176), (122, 149668), (124, 147254), (136, 134261), (142, 128588), (244, 74834), (248, 73627), (284, 64294), (488, 37417), (527, 34648), (568, 32147), (1037, 17608), (1054, 17324), (1207, 15128), (1891, 9656), (2074, 8804), (2108, 8662), (2201, 8296), (2414, 7564), (3782, 4828), (4148, 4402), (4216, 4331)]