2491904

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:206

約数の個数: 40

約数和(自身を含む): 5172288

約数和(自身を除く): 2680384

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 157, 248, 256, 314, 496, 512, 628, 992, 1256, 1984, 2512, 3968, 4867, 5024, 7936, 9734, 10048, 15872, 19468, 20096, 38936, 40192, 77872, 80384, 155744, 311488, 622976, 1245952, 2491904]

約数ペア:

[(1, 2491904), (2, 1245952), (4, 622976), (8, 311488), (16, 155744), (31, 80384), (32, 77872), (62, 40192), (64, 38936), (124, 20096), (128, 19468), (157, 15872), (248, 10048), (256, 9734), (314, 7936), (496, 5024), (512, 4867), (628, 3968), (992, 2512), (1256, 1984)]