20384768

素因数分解:

$2^{10}\times {\mathrm{17}}^1\times {\mathrm{1171}}^1$

素因数の和:1208

約数の個数: 44

約数和(自身を含む): 43183512

約数和(自身を除く): 22798744

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 512, 544, 1024, 1088, 1171, 2176, 2342, 4352, 4684, 8704, 9368, 17408, 18736, 19907, 37472, 39814, 74944, 79628, 149888, 159256, 299776, 318512, 599552, 637024, 1199104, 1274048, 2548096, 5096192, 10192384, 20384768]

約数ペア:

[(1, 20384768), (2, 10192384), (4, 5096192), (8, 2548096), (16, 1274048), (17, 1199104), (32, 637024), (34, 599552), (64, 318512), (68, 299776), (128, 159256), (136, 149888), (256, 79628), (272, 74944), (512, 39814), (544, 37472), (1024, 19907), (1088, 18736), (1171, 17408), (2176, 9368), (2342, 8704), (4352, 4684)]