18190816

素因数分解:

$2^5\times 7^1\times {\mathrm{17}}^2\times {\mathrm{281}}^1$

素因数の和:332

約数の個数: 72

約数和(自身を含む): 43633296

約数和(自身を除く): 25442480

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 68, 112, 119, 136, 224, 238, 272, 281, 289, 476, 544, 562, 578, 952, 1124, 1156, 1904, 1967, 2023, 2248, 2312, 3808, 3934, 4046, 4496, 4624, 4777, 7868, 8092, 8992, 9248, 9554, 15736, 16184, 19108, 31472, 32368, 33439, 38216, 62944, 64736, 66878, 76432, 81209, 133756, 152864, 162418, 267512, 324836, 535024, 568463, 649672, 1070048, 1136926, 1299344, 2273852, 2598688, 4547704, 9095408, 18190816]

約数ペア:

[(1, 18190816), (2, 9095408), (4, 4547704), (7, 2598688), (8, 2273852), (14, 1299344), (16, 1136926), (17, 1070048), (28, 649672), (32, 568463), (34, 535024), (56, 324836), (68, 267512), (112, 162418), (119, 152864), (136, 133756), (224, 81209), (238, 76432), (272, 66878), (281, 64736), (289, 62944), (476, 38216), (544, 33439), (562, 32368), (578, 31472), (952, 19108), (1124, 16184), (1156, 15736), (1904, 9554), (1967, 9248), (2023, 8992), (2248, 8092), (2312, 7868), (3808, 4777), (3934, 4624), (4046, 4496)]