68573660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{997}}^1$

素因数の和:1206

約数の個数: 48

約数和(自身を含む): 152574240

約数和(自身を除く): 84000580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 181, 190, 362, 380, 724, 905, 997, 1810, 1994, 3439, 3620, 3988, 4985, 6878, 9970, 13756, 17195, 18943, 19940, 34390, 37886, 68780, 75772, 94715, 180457, 189430, 360914, 378860, 721828, 902285, 1804570, 3428683, 3609140, 6857366, 13714732, 17143415, 34286830, 68573660]

約数ペア:

[(1, 68573660), (2, 34286830), (4, 17143415), (5, 13714732), (10, 6857366), (19, 3609140), (20, 3428683), (38, 1804570), (76, 902285), (95, 721828), (181, 378860), (190, 360914), (362, 189430), (380, 180457), (724, 94715), (905, 75772), (997, 68780), (1810, 37886), (1994, 34390), (3439, 19940), (3620, 18943), (3988, 17195), (4985, 13756), (6878, 9970)]