220704128

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{55621}}^1$

素因数の和:55666

約数の個数: 32

約数和(自身を含む): 453875520

約数和(自身を除く): 233171392

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 55621, 111242, 222484, 444968, 889936, 1724251, 1779872, 3448502, 3559744, 6897004, 7119488, 13794008, 27588016, 55176032, 110352064, 220704128]

約数ペア:

[(1, 220704128), (2, 110352064), (4, 55176032), (8, 27588016), (16, 13794008), (31, 7119488), (32, 6897004), (62, 3559744), (64, 3448502), (124, 1779872), (128, 1724251), (248, 889936), (496, 444968), (992, 222484), (1984, 111242), (3968, 55621)]