645728

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{1187}}^1$

素因数の和:1214

約数の個数: 24

約数和(自身を含む): 1347192

約数和(自身を除く): 701464

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 272, 544, 1187, 2374, 4748, 9496, 18992, 20179, 37984, 40358, 80716, 161432, 322864, 645728]

約数ペア:

[(1, 645728), (2, 322864), (4, 161432), (8, 80716), (16, 40358), (17, 37984), (32, 20179), (34, 18992), (68, 9496), (136, 4748), (272, 2374), (544, 1187)]