19695700

素因数分解:

$2^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{2213}}^1$

素因数の和:2316

約数の個数: 36

約数和(自身を含む): 43239420

約数和(自身を除く): 23543720

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 178, 356, 445, 890, 1780, 2213, 2225, 4426, 4450, 8852, 8900, 11065, 22130, 44260, 55325, 110650, 196957, 221300, 393914, 787828, 984785, 1969570, 3939140, 4923925, 9847850, 19695700]

約数ペア:

[(1, 19695700), (2, 9847850), (4, 4923925), (5, 3939140), (10, 1969570), (20, 984785), (25, 787828), (50, 393914), (89, 221300), (100, 196957), (178, 110650), (356, 55325), (445, 44260), (890, 22130), (1780, 11065), (2213, 8900), (2225, 8852), (4426, 4450)]