20339968

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{233}}^1$

素因数の和:291

約数の個数: 72

約数和(自身を含む): 45916416

約数和(自身を除く): 25576448

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 64, 88, 124, 128, 176, 233, 248, 256, 341, 352, 466, 496, 682, 704, 932, 992, 1364, 1408, 1864, 1984, 2563, 2728, 2816, 3728, 3968, 5126, 5456, 7223, 7456, 7936, 10252, 10912, 14446, 14912, 20504, 21824, 28892, 29824, 41008, 43648, 57784, 59648, 79453, 82016, 87296, 115568, 158906, 164032, 231136, 317812, 328064, 462272, 635624, 656128, 924544, 1271248, 1849088, 2542496, 5084992, 10169984, 20339968]

約数ペア:

[(1, 20339968), (2, 10169984), (4, 5084992), (8, 2542496), (11, 1849088), (16, 1271248), (22, 924544), (31, 656128), (32, 635624), (44, 462272), (62, 328064), (64, 317812), (88, 231136), (124, 164032), (128, 158906), (176, 115568), (233, 87296), (248, 82016), (256, 79453), (341, 59648), (352, 57784), (466, 43648), (496, 41008), (682, 29824), (704, 28892), (932, 21824), (992, 20504), (1364, 14912), (1408, 14446), (1864, 10912), (1984, 10252), (2563, 7936), (2728, 7456), (2816, 7223), (3728, 5456), (3968, 5126)]