19745264

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:115

約数の個数: 120

約数和(自身を含む): 50663424

約数和(自身を除く): 30918160

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 31, 44, 47, 56, 62, 77, 88, 94, 112, 121, 124, 154, 176, 188, 217, 242, 248, 308, 329, 341, 376, 434, 484, 496, 517, 616, 658, 682, 752, 847, 868, 968, 1034, 1232, 1316, 1364, 1457, 1694, 1736, 1936, 2068, 2387, 2632, 2728, 2914, 3388, 3472, 3619, 3751, 4136, 4774, 5264, 5456, 5687, 5828, 6776, 7238, 7502, 8272, 9548, 10199, 11374, 11656, 13552, 14476, 15004, 16027, 19096, 20398, 22748, 23312, 26257, 28952, 30008, 32054, 38192, 39809, 40796, 45496, 52514, 57904, 60016, 64108, 79618, 81592, 90992, 105028, 112189, 128216, 159236, 163184, 176297, 210056, 224378, 256432, 318472, 352594, 420112, 448756, 636944, 705188, 897512, 1234079, 1410376, 1795024, 2468158, 2820752, 4936316, 9872632, 19745264]

約数ペア:

[(1, 19745264), (2, 9872632), (4, 4936316), (7, 2820752), (8, 2468158), (11, 1795024), (14, 1410376), (16, 1234079), (22, 897512), (28, 705188), (31, 636944), (44, 448756), (47, 420112), (56, 352594), (62, 318472), (77, 256432), (88, 224378), (94, 210056), (112, 176297), (121, 163184), (124, 159236), (154, 128216), (176, 112189), (188, 105028), (217, 90992), (242, 81592), (248, 79618), (308, 64108), (329, 60016), (341, 57904), (376, 52514), (434, 45496), (484, 40796), (496, 39809), (517, 38192), (616, 32054), (658, 30008), (682, 28952), (752, 26257), (847, 23312), (868, 22748), (968, 20398), (1034, 19096), (1232, 16027), (1316, 15004), (1364, 14476), (1457, 13552), (1694, 11656), (1736, 11374), (1936, 10199), (2068, 9548), (2387, 8272), (2632, 7502), (2728, 7238), (2914, 6776), (3388, 5828), (3472, 5687), (3619, 5456), (3751, 5264), (4136, 4774)]