121982720

素因数分解:

$2^8\times 5^1\times {\mathrm{157}}^1\times {\mathrm{607}}^1$

素因数の和:785

約数の個数: 72

約数和(自身を含む): 294532224

約数和(自身を除く): 172549504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 256, 314, 320, 607, 628, 640, 785, 1214, 1256, 1280, 1570, 2428, 2512, 3035, 3140, 4856, 5024, 6070, 6280, 9712, 10048, 12140, 12560, 19424, 20096, 24280, 25120, 38848, 40192, 48560, 50240, 77696, 95299, 97120, 100480, 155392, 190598, 194240, 200960, 381196, 388480, 476495, 762392, 776960, 952990, 1524784, 1905980, 3049568, 3811960, 6099136, 7623920, 12198272, 15247840, 24396544, 30495680, 60991360, 121982720]

約数ペア:

[(1, 121982720), (2, 60991360), (4, 30495680), (5, 24396544), (8, 15247840), (10, 12198272), (16, 7623920), (20, 6099136), (32, 3811960), (40, 3049568), (64, 1905980), (80, 1524784), (128, 952990), (157, 776960), (160, 762392), (256, 476495), (314, 388480), (320, 381196), (607, 200960), (628, 194240), (640, 190598), (785, 155392), (1214, 100480), (1256, 97120), (1280, 95299), (1570, 77696), (2428, 50240), (2512, 48560), (3035, 40192), (3140, 38848), (4856, 25120), (5024, 24280), (6070, 20096), (6280, 19424), (9712, 12560), (10048, 12140)]