20288796

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:275

約数の個数: 72

約数和(自身を含む): 52955280

約数和(自身を除く): 32666484

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 89, 121, 132, 157, 178, 242, 267, 314, 356, 363, 471, 484, 534, 628, 726, 942, 979, 1068, 1452, 1727, 1884, 1958, 2937, 3454, 3916, 5181, 5874, 6908, 10362, 10769, 11748, 13973, 18997, 20724, 21538, 27946, 32307, 37994, 41919, 43076, 55892, 56991, 64614, 75988, 83838, 113982, 129228, 153703, 167676, 227964, 307406, 461109, 614812, 922218, 1690733, 1844436, 3381466, 5072199, 6762932, 10144398, 20288796]

約数ペア:

[(1, 20288796), (2, 10144398), (3, 6762932), (4, 5072199), (6, 3381466), (11, 1844436), (12, 1690733), (22, 922218), (33, 614812), (44, 461109), (66, 307406), (89, 227964), (121, 167676), (132, 153703), (157, 129228), (178, 113982), (242, 83838), (267, 75988), (314, 64614), (356, 56991), (363, 55892), (471, 43076), (484, 41919), (534, 37994), (628, 32307), (726, 27946), (942, 21538), (979, 20724), (1068, 18997), (1452, 13973), (1727, 11748), (1884, 10769), (1958, 10362), (2937, 6908), (3454, 5874), (3916, 5181)]