20875592

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:198

約数の個数: 64

約数和(自身を含む): 44064000

約数和(自身を除く): 23188408

約数列:

[1, 2, 4, 8, 17, 29, 34, 58, 67, 68, 79, 116, 134, 136, 158, 232, 268, 316, 493, 536, 632, 986, 1139, 1343, 1943, 1972, 2278, 2291, 2686, 3886, 3944, 4556, 4582, 5293, 5372, 7772, 9112, 9164, 10586, 10744, 15544, 18328, 21172, 33031, 38947, 42344, 66062, 77894, 89981, 132124, 153497, 155788, 179962, 264248, 306994, 311576, 359924, 613988, 719848, 1227976, 2609449, 5218898, 10437796, 20875592]

約数ペア:

[(1, 20875592), (2, 10437796), (4, 5218898), (8, 2609449), (17, 1227976), (29, 719848), (34, 613988), (58, 359924), (67, 311576), (68, 306994), (79, 264248), (116, 179962), (134, 155788), (136, 153497), (158, 132124), (232, 89981), (268, 77894), (316, 66062), (493, 42344), (536, 38947), (632, 33031), (986, 21172), (1139, 18328), (1343, 15544), (1943, 10744), (1972, 10586), (2278, 9164), (2291, 9112), (2686, 7772), (3886, 5372), (3944, 5293), (4556, 4582)]