127498520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{77743}}^1$

素因数の和:77795

約数の個数: 32

約数和(自身を含む): 293872320

約数和(自身を除く): 166373800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 77743, 155486, 310972, 388715, 621944, 777430, 1554860, 3109720, 3187463, 6374926, 12749852, 15937315, 25499704, 31874630, 63749260, 127498520]

約数ペア:

[(1, 127498520), (2, 63749260), (4, 31874630), (5, 25499704), (8, 15937315), (10, 12749852), (20, 6374926), (40, 3187463), (41, 3109720), (82, 1554860), (164, 777430), (205, 621944), (328, 388715), (410, 310972), (820, 155486), (1640, 77743)]