20408704

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 43953840

約数和(自身を除く): 23545136

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 83, 113, 128, 136, 166, 226, 272, 332, 452, 544, 664, 904, 1088, 1328, 1411, 1808, 1921, 2176, 2656, 2822, 3616, 3842, 5312, 5644, 7232, 7684, 9379, 10624, 11288, 14464, 15368, 18758, 22576, 30736, 37516, 45152, 61472, 75032, 90304, 122944, 150064, 159443, 180608, 245888, 300128, 318886, 600256, 637772, 1200512, 1275544, 2551088, 5102176, 10204352, 20408704]

約数ペア:

[(1, 20408704), (2, 10204352), (4, 5102176), (8, 2551088), (16, 1275544), (17, 1200512), (32, 637772), (34, 600256), (64, 318886), (68, 300128), (83, 245888), (113, 180608), (128, 159443), (136, 150064), (166, 122944), (226, 90304), (272, 75032), (332, 61472), (452, 45152), (544, 37516), (664, 30736), (904, 22576), (1088, 18758), (1328, 15368), (1411, 14464), (1808, 11288), (1921, 10624), (2176, 9379), (2656, 7684), (2822, 7232), (3616, 5644), (3842, 5312)]