18889472

素因数分解:

$2^8\times 7^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:233

約数の個数: 72

約数和(自身を含む): 43954176

約数和(自身を除く): 25064704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 83, 112, 127, 128, 166, 224, 254, 256, 332, 448, 508, 581, 664, 889, 896, 1016, 1162, 1328, 1778, 1792, 2032, 2324, 2656, 3556, 4064, 4648, 5312, 7112, 8128, 9296, 10541, 10624, 14224, 16256, 18592, 21082, 21248, 28448, 32512, 37184, 42164, 56896, 73787, 74368, 84328, 113792, 147574, 148736, 168656, 227584, 295148, 337312, 590296, 674624, 1180592, 1349248, 2361184, 2698496, 4722368, 9444736, 18889472]

約数ペア:

[(1, 18889472), (2, 9444736), (4, 4722368), (7, 2698496), (8, 2361184), (14, 1349248), (16, 1180592), (28, 674624), (32, 590296), (56, 337312), (64, 295148), (83, 227584), (112, 168656), (127, 148736), (128, 147574), (166, 113792), (224, 84328), (254, 74368), (256, 73787), (332, 56896), (448, 42164), (508, 37184), (581, 32512), (664, 28448), (889, 21248), (896, 21082), (1016, 18592), (1162, 16256), (1328, 14224), (1778, 10624), (1792, 10541), (2032, 9296), (2324, 8128), (2656, 7112), (3556, 5312), (4064, 4648)]