1407398920

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{495563}}^1$

素因数の和:495645

約数の個数: 32

約数和(自身を含む): 3211254720

約数和(自身を除く): 1803855800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 495563, 991126, 1982252, 2477815, 3964504, 4955630, 9911260, 19822520, 35184973, 70369946, 140739892, 175924865, 281479784, 351849730, 703699460, 1407398920]

約数ペア:

[(1, 1407398920), (2, 703699460), (4, 351849730), (5, 281479784), (8, 175924865), (10, 140739892), (20, 70369946), (40, 35184973), (71, 19822520), (142, 9911260), (284, 4955630), (355, 3964504), (568, 2477815), (710, 1982252), (1420, 991126), (2840, 495563)]