39790640

素因数分解:

$2^4\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1013}}^1$

素因数の和:1517

約数の個数: 40

約数和(自身を含む): 92793168

約数和(自身を除く): 53002528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 491, 982, 1013, 1964, 2026, 2455, 3928, 4052, 4910, 5065, 7856, 8104, 9820, 10130, 16208, 19640, 20260, 39280, 40520, 81040, 497383, 994766, 1989532, 2486915, 3979064, 4973830, 7958128, 9947660, 19895320, 39790640]

約数ペア:

[(1, 39790640), (2, 19895320), (4, 9947660), (5, 7958128), (8, 4973830), (10, 3979064), (16, 2486915), (20, 1989532), (40, 994766), (80, 497383), (491, 81040), (982, 40520), (1013, 39280), (1964, 20260), (2026, 19640), (2455, 16208), (3928, 10130), (4052, 9820), (4910, 8104), (5065, 7856)]