221755648

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{27943}}^1$

素因数の和:27990

約数の個数: 36

約数和(自身を含む): 456940288

約数和(自身を除く): 235184640

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 992, 1984, 3968, 7936, 27943, 55886, 111772, 223544, 447088, 866233, 894176, 1732466, 1788352, 3464932, 3576704, 6929864, 7153408, 13859728, 27719456, 55438912, 110877824, 221755648]

約数ペア:

[(1, 221755648), (2, 110877824), (4, 55438912), (8, 27719456), (16, 13859728), (31, 7153408), (32, 6929864), (62, 3576704), (64, 3464932), (124, 1788352), (128, 1732466), (248, 894176), (256, 866233), (496, 447088), (992, 223544), (1984, 111772), (3968, 55886), (7936, 27943)]