123280000

素因数分解:

$2^7\times 5^4\times {\mathrm{23}}^1\times {\mathrm{67}}^1$

素因数の和:124

約数の個数: 160

約数和(自身を含む): 325020960

約数和(自身を除く): 201740960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 64, 67, 80, 92, 100, 115, 125, 128, 134, 160, 184, 200, 230, 250, 268, 320, 335, 368, 400, 460, 500, 536, 575, 625, 640, 670, 736, 800, 920, 1000, 1072, 1150, 1250, 1340, 1472, 1541, 1600, 1675, 1840, 2000, 2144, 2300, 2500, 2680, 2875, 2944, 3082, 3200, 3350, 3680, 4000, 4288, 4600, 5000, 5360, 5750, 6164, 6700, 7360, 7705, 8000, 8375, 8576, 9200, 10000, 10720, 11500, 12328, 13400, 14375, 14720, 15410, 16000, 16750, 18400, 20000, 21440, 23000, 24656, 26800, 28750, 30820, 33500, 36800, 38525, 40000, 41875, 42880, 46000, 49312, 53600, 57500, 61640, 67000, 73600, 77050, 80000, 83750, 92000, 98624, 107200, 115000, 123280, 134000, 154100, 167500, 184000, 192625, 197248, 214400, 230000, 246560, 268000, 308200, 335000, 368000, 385250, 460000, 493120, 536000, 616400, 670000, 770500, 920000, 963125, 986240, 1072000, 1232800, 1340000, 1541000, 1840000, 1926250, 2465600, 2680000, 3082000, 3852500, 4931200, 5360000, 6164000, 7705000, 12328000, 15410000, 24656000, 30820000, 61640000, 123280000]

約数ペア:

[(1, 123280000), (2, 61640000), (4, 30820000), (5, 24656000), (8, 15410000), (10, 12328000), (16, 7705000), (20, 6164000), (23, 5360000), (25, 4931200), (32, 3852500), (40, 3082000), (46, 2680000), (50, 2465600), (64, 1926250), (67, 1840000), (80, 1541000), (92, 1340000), (100, 1232800), (115, 1072000), (125, 986240), (128, 963125), (134, 920000), (160, 770500), (184, 670000), (200, 616400), (230, 536000), (250, 493120), (268, 460000), (320, 385250), (335, 368000), (368, 335000), (400, 308200), (460, 268000), (500, 246560), (536, 230000), (575, 214400), (625, 197248), (640, 192625), (670, 184000), (736, 167500), (800, 154100), (920, 134000), (1000, 123280), (1072, 115000), (1150, 107200), (1250, 98624), (1340, 92000), (1472, 83750), (1541, 80000), (1600, 77050), (1675, 73600), (1840, 67000), (2000, 61640), (2144, 57500), (2300, 53600), (2500, 49312), (2680, 46000), (2875, 42880), (2944, 41875), (3082, 40000), (3200, 38525), (3350, 36800), (3680, 33500), (4000, 30820), (4288, 28750), (4600, 26800), (5000, 24656), (5360, 23000), (5750, 21440), (6164, 20000), (6700, 18400), (7360, 16750), (7705, 16000), (8000, 15410), (8375, 14720), (8576, 14375), (9200, 13400), (10000, 12328), (10720, 11500)]