221279488

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{27883}}^1$

素因数の和:27930

約数の個数: 36

約数和(自身を含む): 455959168

約数和(自身を除く): 234679680

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 992, 1984, 3968, 7936, 27883, 55766, 111532, 223064, 446128, 864373, 892256, 1728746, 1784512, 3457492, 3569024, 6914984, 7138048, 13829968, 27659936, 55319872, 110639744, 221279488]

約数ペア:

[(1, 221279488), (2, 110639744), (4, 55319872), (8, 27659936), (16, 13829968), (31, 7138048), (32, 6914984), (62, 3569024), (64, 3457492), (124, 1784512), (128, 1728746), (248, 892256), (256, 864373), (496, 446128), (992, 223064), (1984, 111532), (3968, 55766), (7936, 27883)]