19439728

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:566

約数の個数: 80

約数和(自身を含む): 48568320

約数和(自身を除く): 29128592

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 31, 44, 56, 62, 77, 88, 112, 124, 154, 176, 217, 248, 308, 341, 434, 496, 509, 616, 682, 868, 1018, 1232, 1364, 1736, 2036, 2387, 2728, 3472, 3563, 4072, 4774, 5456, 5599, 7126, 8144, 9548, 11198, 14252, 15779, 19096, 22396, 28504, 31558, 38192, 39193, 44792, 57008, 63116, 78386, 89584, 110453, 126232, 156772, 173569, 220906, 252464, 313544, 347138, 441812, 627088, 694276, 883624, 1214983, 1388552, 1767248, 2429966, 2777104, 4859932, 9719864, 19439728]

約数ペア:

[(1, 19439728), (2, 9719864), (4, 4859932), (7, 2777104), (8, 2429966), (11, 1767248), (14, 1388552), (16, 1214983), (22, 883624), (28, 694276), (31, 627088), (44, 441812), (56, 347138), (62, 313544), (77, 252464), (88, 220906), (112, 173569), (124, 156772), (154, 126232), (176, 110453), (217, 89584), (248, 78386), (308, 63116), (341, 57008), (434, 44792), (496, 39193), (509, 38192), (616, 31558), (682, 28504), (868, 22396), (1018, 19096), (1232, 15779), (1364, 14252), (1736, 11198), (2036, 9548), (2387, 8144), (2728, 7126), (3472, 5599), (3563, 5456), (4072, 4774)]