123075440

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{239}}^1$

素因数の和:450

約数の個数: 80

約数和(自身を含む): 296231040

約数和(自身を除く): 173155600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 157, 164, 205, 239, 314, 328, 410, 478, 628, 656, 785, 820, 956, 1195, 1256, 1570, 1640, 1912, 2390, 2512, 3140, 3280, 3824, 4780, 6280, 6437, 9560, 9799, 12560, 12874, 19120, 19598, 25748, 32185, 37523, 39196, 48995, 51496, 64370, 75046, 78392, 97990, 102992, 128740, 150092, 156784, 187615, 195980, 257480, 300184, 375230, 391960, 514960, 600368, 750460, 783920, 1500920, 1538443, 3001840, 3076886, 6153772, 7692215, 12307544, 15384430, 24615088, 30768860, 61537720, 123075440]

約数ペア:

[(1, 123075440), (2, 61537720), (4, 30768860), (5, 24615088), (8, 15384430), (10, 12307544), (16, 7692215), (20, 6153772), (40, 3076886), (41, 3001840), (80, 1538443), (82, 1500920), (157, 783920), (164, 750460), (205, 600368), (239, 514960), (314, 391960), (328, 375230), (410, 300184), (478, 257480), (628, 195980), (656, 187615), (785, 156784), (820, 150092), (956, 128740), (1195, 102992), (1256, 97990), (1570, 78392), (1640, 75046), (1912, 64370), (2390, 51496), (2512, 48995), (3140, 39196), (3280, 37523), (3824, 32185), (4780, 25748), (6280, 19598), (6437, 19120), (9560, 12874), (9799, 12560)]