157728520

素因数分解:

$2^3\times 5^1\times {\mathrm{757}}^1\times {\mathrm{5209}}^1$

素因数の和:5977

約数の個数: 32

約数和(自身を含む): 355426200

約数和(自身を除く): 197697680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 757, 1514, 3028, 3785, 5209, 6056, 7570, 10418, 15140, 20836, 26045, 30280, 41672, 52090, 104180, 208360, 3943213, 7886426, 15772852, 19716065, 31545704, 39432130, 78864260, 157728520]

約数ペア:

[(1, 157728520), (2, 78864260), (4, 39432130), (5, 31545704), (8, 19716065), (10, 15772852), (20, 7886426), (40, 3943213), (757, 208360), (1514, 104180), (3028, 52090), (3785, 41672), (5209, 30280), (6056, 26045), (7570, 20836), (10418, 15140)]