61680560

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{8663}}^1$

素因数の和:8765

約数の個数: 40

約数和(自身を含む): 145035360

約数和(自身を除く): 83354800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 8663, 17326, 34652, 43315, 69304, 86630, 138608, 173260, 346520, 693040, 771007, 1542014, 3084028, 3855035, 6168056, 7710070, 12336112, 15420140, 30840280, 61680560]

約数ペア:

[(1, 61680560), (2, 30840280), (4, 15420140), (5, 12336112), (8, 7710070), (10, 6168056), (16, 3855035), (20, 3084028), (40, 1542014), (80, 771007), (89, 693040), (178, 346520), (356, 173260), (445, 138608), (712, 86630), (890, 69304), (1424, 43315), (1780, 34652), (3560, 17326), (7120, 8663)]