128731878

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{1801}}^1$

素因数の和:1858

約数の個数: 72

約数和(自身を含む): 321311016

約数和(自身を除く): 192579138

約数列:

[1, 2, 3, 6, 9, 11, 18, 19, 22, 33, 38, 57, 66, 99, 114, 171, 198, 209, 342, 361, 418, 627, 722, 1083, 1254, 1801, 1881, 2166, 3249, 3602, 3762, 3971, 5403, 6498, 7942, 10806, 11913, 16209, 19811, 23826, 32418, 34219, 35739, 39622, 59433, 68438, 71478, 102657, 118866, 178299, 205314, 307971, 356598, 376409, 615942, 650161, 752818, 1129227, 1300322, 1950483, 2258454, 3387681, 3900966, 5851449, 6775362, 7151771, 11702898, 14303542, 21455313, 42910626, 64365939, 128731878]

約数ペア:

[(1, 128731878), (2, 64365939), (3, 42910626), (6, 21455313), (9, 14303542), (11, 11702898), (18, 7151771), (19, 6775362), (22, 5851449), (33, 3900966), (38, 3387681), (57, 2258454), (66, 1950483), (99, 1300322), (114, 1129227), (171, 752818), (198, 650161), (209, 615942), (342, 376409), (361, 356598), (418, 307971), (627, 205314), (722, 178299), (1083, 118866), (1254, 102657), (1801, 71478), (1881, 68438), (2166, 59433), (3249, 39622), (3602, 35739), (3762, 34219), (3971, 32418), (5403, 23826), (6498, 19811), (7942, 16209), (10806, 11913)]