804560

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:215

約数の個数: 40

約数和(自身を含む): 1908360

約数和(自身を除く): 1103800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 113, 178, 226, 356, 445, 452, 565, 712, 890, 904, 1130, 1424, 1780, 1808, 2260, 3560, 4520, 7120, 9040, 10057, 20114, 40228, 50285, 80456, 100570, 160912, 201140, 402280, 804560]

約数ペア:

[(1, 804560), (2, 402280), (4, 201140), (5, 160912), (8, 100570), (10, 80456), (16, 50285), (20, 40228), (40, 20114), (80, 10057), (89, 9040), (113, 7120), (178, 4520), (226, 3560), (356, 2260), (445, 1808), (452, 1780), (565, 1424), (712, 1130), (890, 904)]