199917886

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{797}}^1$

素因数の和:889

約数の個数: 64

約数和(自身を含む): 386104320

約数和(自身を除く): 186186434

約数列:

[1, 2, 7, 14, 19, 23, 38, 41, 46, 82, 133, 161, 266, 287, 322, 437, 574, 779, 797, 874, 943, 1558, 1594, 1886, 3059, 5453, 5579, 6118, 6601, 10906, 11158, 13202, 15143, 17917, 18331, 30286, 32677, 35834, 36662, 65354, 106001, 125419, 128317, 212002, 228739, 250838, 256634, 348289, 457478, 620863, 696578, 751571, 1241726, 1503142, 2438023, 4346041, 4876046, 5260997, 8692082, 10521994, 14279849, 28559698, 99958943, 199917886]

約数ペア:

[(1, 199917886), (2, 99958943), (7, 28559698), (14, 14279849), (19, 10521994), (23, 8692082), (38, 5260997), (41, 4876046), (46, 4346041), (82, 2438023), (133, 1503142), (161, 1241726), (266, 751571), (287, 696578), (322, 620863), (437, 457478), (574, 348289), (779, 256634), (797, 250838), (874, 228739), (943, 212002), (1558, 128317), (1594, 125419), (1886, 106001), (3059, 65354), (5453, 36662), (5579, 35834), (6118, 32677), (6601, 30286), (10906, 18331), (11158, 17917), (13202, 15143)]