18415352

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:180

約数の個数: 64

約数和(自身を含む): 38776320

約数和(自身を除く): 20360968

約数列:

[1, 2, 4, 8, 17, 34, 43, 47, 67, 68, 86, 94, 134, 136, 172, 188, 268, 344, 376, 536, 731, 799, 1139, 1462, 1598, 2021, 2278, 2881, 2924, 3149, 3196, 4042, 4556, 5762, 5848, 6298, 6392, 8084, 9112, 11524, 12596, 16168, 23048, 25192, 34357, 48977, 53533, 68714, 97954, 107066, 135407, 137428, 195908, 214132, 270814, 274856, 391816, 428264, 541628, 1083256, 2301919, 4603838, 9207676, 18415352]

約数ペア:

[(1, 18415352), (2, 9207676), (4, 4603838), (8, 2301919), (17, 1083256), (34, 541628), (43, 428264), (47, 391816), (67, 274856), (68, 270814), (86, 214132), (94, 195908), (134, 137428), (136, 135407), (172, 107066), (188, 97954), (268, 68714), (344, 53533), (376, 48977), (536, 34357), (731, 25192), (799, 23048), (1139, 16168), (1462, 12596), (1598, 11524), (2021, 9112), (2278, 8084), (2881, 6392), (2924, 6298), (3149, 5848), (3196, 5762), (4042, 4556)]