18923120

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4463}}^1$

素因数の和:4529

約数の個数: 40

約数和(自身を含む): 44836416

約数和(自身を除く): 25913296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 4463, 8926, 17852, 22315, 35704, 44630, 71408, 89260, 178520, 236539, 357040, 473078, 946156, 1182695, 1892312, 2365390, 3784624, 4730780, 9461560, 18923120]

約数ペア:

[(1, 18923120), (2, 9461560), (4, 4730780), (5, 3784624), (8, 2365390), (10, 1892312), (16, 1182695), (20, 946156), (40, 473078), (53, 357040), (80, 236539), (106, 178520), (212, 89260), (265, 71408), (424, 44630), (530, 35704), (848, 22315), (1060, 17852), (2120, 8926), (4240, 4463)]