40396520

素因数分解:

$2^3\times 5^1\times {\mathrm{523}}^1\times {\mathrm{1931}}^1$

素因数の和:2465

約数の個数: 32

約数和(自身を含む): 91113120

約数和(自身を除く): 50716600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 523, 1046, 1931, 2092, 2615, 3862, 4184, 5230, 7724, 9655, 10460, 15448, 19310, 20920, 38620, 77240, 1009913, 2019826, 4039652, 5049565, 8079304, 10099130, 20198260, 40396520]

約数ペア:

[(1, 40396520), (2, 20198260), (4, 10099130), (5, 8079304), (8, 5049565), (10, 4039652), (20, 2019826), (40, 1009913), (523, 77240), (1046, 38620), (1931, 20920), (2092, 19310), (2615, 15448), (3862, 10460), (4184, 9655), (5230, 7724)]