1277896384

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{644101}}^1$

素因数の和:644144

約数の個数: 28

約数和(自身を含む): 2617630528

約数和(自身を除く): 1339734144

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 248, 496, 992, 1984, 644101, 1288202, 2576404, 5152808, 10305616, 19967131, 20611232, 39934262, 41222464, 79868524, 159737048, 319474096, 638948192, 1277896384]

約数ペア:

[(1, 1277896384), (2, 638948192), (4, 319474096), (8, 159737048), (16, 79868524), (31, 41222464), (32, 39934262), (62, 20611232), (64, 19967131), (124, 10305616), (248, 5152808), (496, 2576404), (992, 1288202), (1984, 644101)]