8721664

素因数分解:

$2^8\times 7^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:211

約数の個数: 72

約数和(自身を含む): 20668928

約数和(自身を除く): 11947264

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 157, 217, 224, 248, 256, 314, 434, 448, 496, 628, 868, 896, 992, 1099, 1256, 1736, 1792, 1984, 2198, 2512, 3472, 3968, 4396, 4867, 5024, 6944, 7936, 8792, 9734, 10048, 13888, 17584, 19468, 20096, 27776, 34069, 35168, 38936, 40192, 55552, 68138, 70336, 77872, 136276, 140672, 155744, 272552, 281344, 311488, 545104, 622976, 1090208, 1245952, 2180416, 4360832, 8721664]

約数ペア:

[(1, 8721664), (2, 4360832), (4, 2180416), (7, 1245952), (8, 1090208), (14, 622976), (16, 545104), (28, 311488), (31, 281344), (32, 272552), (56, 155744), (62, 140672), (64, 136276), (112, 77872), (124, 70336), (128, 68138), (157, 55552), (217, 40192), (224, 38936), (248, 35168), (256, 34069), (314, 27776), (434, 20096), (448, 19468), (496, 17584), (628, 13888), (868, 10048), (896, 9734), (992, 8792), (1099, 7936), (1256, 6944), (1736, 5024), (1792, 4867), (1984, 4396), (2198, 3968), (2512, 3472)]