386208520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{235493}}^1$

素因数の和:235545

約数の個数: 32

約数和(自身を含む): 890167320

約数和(自身を除く): 503958800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 235493, 470986, 941972, 1177465, 1883944, 2354930, 4709860, 9419720, 9655213, 19310426, 38620852, 48276065, 77241704, 96552130, 193104260, 386208520]

約数ペア:

[(1, 386208520), (2, 193104260), (4, 96552130), (5, 77241704), (8, 48276065), (10, 38620852), (20, 19310426), (40, 9655213), (41, 9419720), (82, 4709860), (164, 2354930), (205, 1883944), (328, 1177465), (410, 941972), (820, 470986), (1640, 235493)]