20411028

素因数分解:

$2^2\times 3^5\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:136

約数の個数: 144

約数和(自身を含む): 61641216

約数和(自身を除く): 41230188

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 23, 27, 33, 36, 44, 46, 54, 66, 69, 81, 83, 92, 99, 108, 132, 138, 162, 166, 198, 207, 243, 249, 253, 276, 297, 324, 332, 396, 414, 486, 498, 506, 594, 621, 747, 759, 828, 891, 913, 972, 996, 1012, 1188, 1242, 1494, 1518, 1782, 1826, 1863, 1909, 2241, 2277, 2484, 2673, 2739, 2988, 3036, 3564, 3652, 3726, 3818, 4482, 4554, 5346, 5478, 5589, 5727, 6723, 6831, 7452, 7636, 8217, 8964, 9108, 10692, 10956, 11178, 11454, 13446, 13662, 16434, 17181, 20169, 20493, 20999, 22356, 22908, 24651, 26892, 27324, 32868, 34362, 40338, 40986, 41998, 49302, 51543, 61479, 62997, 68724, 73953, 80676, 81972, 83996, 98604, 103086, 122958, 125994, 147906, 154629, 188991, 206172, 221859, 245916, 251988, 295812, 309258, 377982, 443718, 463887, 566973, 618516, 755964, 887436, 927774, 1133946, 1700919, 1855548, 2267892, 3401838, 5102757, 6803676, 10205514, 20411028]

約数ペア:

[(1, 20411028), (2, 10205514), (3, 6803676), (4, 5102757), (6, 3401838), (9, 2267892), (11, 1855548), (12, 1700919), (18, 1133946), (22, 927774), (23, 887436), (27, 755964), (33, 618516), (36, 566973), (44, 463887), (46, 443718), (54, 377982), (66, 309258), (69, 295812), (81, 251988), (83, 245916), (92, 221859), (99, 206172), (108, 188991), (132, 154629), (138, 147906), (162, 125994), (166, 122958), (198, 103086), (207, 98604), (243, 83996), (249, 81972), (253, 80676), (276, 73953), (297, 68724), (324, 62997), (332, 61479), (396, 51543), (414, 49302), (486, 41998), (498, 40986), (506, 40338), (594, 34362), (621, 32868), (747, 27324), (759, 26892), (828, 24651), (891, 22908), (913, 22356), (972, 20999), (996, 20493), (1012, 20169), (1188, 17181), (1242, 16434), (1494, 13662), (1518, 13446), (1782, 11454), (1826, 11178), (1863, 10956), (1909, 10692), (2241, 9108), (2277, 8964), (2484, 8217), (2673, 7636), (2739, 7452), (2988, 6831), (3036, 6723), (3564, 5727), (3652, 5589), (3726, 5478), (3818, 5346), (4482, 4554)]