20069175

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:197

約数の個数: 72

約数和(自身を含む): 39806976

約数和(自身を除く): 19737801

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 43, 49, 75, 105, 127, 129, 147, 175, 215, 245, 301, 381, 525, 635, 645, 735, 889, 903, 1075, 1225, 1505, 1905, 2107, 2667, 3175, 3225, 3675, 4445, 4515, 5461, 6223, 6321, 7525, 9525, 10535, 13335, 16383, 18669, 22225, 22575, 27305, 31115, 31605, 38227, 52675, 66675, 81915, 93345, 114681, 136525, 155575, 158025, 191135, 267589, 409575, 466725, 573405, 802767, 955675, 1337945, 2867025, 4013835, 6689725, 20069175]

約数ペア:

[(1, 20069175), (3, 6689725), (5, 4013835), (7, 2867025), (15, 1337945), (21, 955675), (25, 802767), (35, 573405), (43, 466725), (49, 409575), (75, 267589), (105, 191135), (127, 158025), (129, 155575), (147, 136525), (175, 114681), (215, 93345), (245, 81915), (301, 66675), (381, 52675), (525, 38227), (635, 31605), (645, 31115), (735, 27305), (889, 22575), (903, 22225), (1075, 18669), (1225, 16383), (1505, 13335), (1905, 10535), (2107, 9525), (2667, 7525), (3175, 6321), (3225, 6223), (3675, 5461), (4445, 4515)]