121531280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:229

約数の個数: 120

約数和(自身を含む): 312468840

約数和(自身を除く): 190937560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 89, 101, 104, 130, 169, 178, 202, 208, 260, 338, 356, 404, 445, 505, 520, 676, 712, 808, 845, 890, 1010, 1040, 1157, 1313, 1352, 1424, 1616, 1690, 1780, 2020, 2314, 2626, 2704, 3380, 3560, 4040, 4628, 5252, 5785, 6565, 6760, 7120, 8080, 8989, 9256, 10504, 11570, 13130, 13520, 15041, 17069, 17978, 18512, 21008, 23140, 26260, 30082, 34138, 35956, 44945, 46280, 52520, 60164, 68276, 71912, 75205, 85345, 89890, 92560, 105040, 116857, 120328, 136552, 143824, 150410, 170690, 179780, 233714, 240656, 273104, 300820, 341380, 359560, 467428, 584285, 601640, 682760, 719120, 934856, 1168570, 1203280, 1365520, 1519141, 1869712, 2337140, 3038282, 4674280, 6076564, 7595705, 9348560, 12153128, 15191410, 24306256, 30382820, 60765640, 121531280]

約数ペア:

[(1, 121531280), (2, 60765640), (4, 30382820), (5, 24306256), (8, 15191410), (10, 12153128), (13, 9348560), (16, 7595705), (20, 6076564), (26, 4674280), (40, 3038282), (52, 2337140), (65, 1869712), (80, 1519141), (89, 1365520), (101, 1203280), (104, 1168570), (130, 934856), (169, 719120), (178, 682760), (202, 601640), (208, 584285), (260, 467428), (338, 359560), (356, 341380), (404, 300820), (445, 273104), (505, 240656), (520, 233714), (676, 179780), (712, 170690), (808, 150410), (845, 143824), (890, 136552), (1010, 120328), (1040, 116857), (1157, 105040), (1313, 92560), (1352, 89890), (1424, 85345), (1616, 75205), (1690, 71912), (1780, 68276), (2020, 60164), (2314, 52520), (2626, 46280), (2704, 44945), (3380, 35956), (3560, 34138), (4040, 30082), (4628, 26260), (5252, 23140), (5785, 21008), (6565, 18512), (6760, 17978), (7120, 17069), (8080, 15041), (8989, 13520), (9256, 13130), (10504, 11570)]