81492786

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{997}}^1$

素因数の和:1263

約数の個数: 48

約数和(自身を含む): 186825600

約数和(自身を除く): 105332814

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 239, 342, 478, 717, 997, 1434, 1994, 2151, 2991, 4302, 4541, 5982, 8973, 9082, 13623, 17946, 18943, 27246, 37886, 40869, 56829, 81738, 113658, 170487, 238283, 340974, 476566, 714849, 1429698, 2144547, 4289094, 4527377, 9054754, 13582131, 27164262, 40746393, 81492786]

約数ペア:

[(1, 81492786), (2, 40746393), (3, 27164262), (6, 13582131), (9, 9054754), (18, 4527377), (19, 4289094), (38, 2144547), (57, 1429698), (114, 714849), (171, 476566), (239, 340974), (342, 238283), (478, 170487), (717, 113658), (997, 81738), (1434, 56829), (1994, 40869), (2151, 37886), (2991, 27246), (4302, 18943), (4541, 17946), (5982, 13623), (8973, 9082)]