20165674725

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{312283}}^1$

素因数の和:312347

約数の個数: 72

約数和(自身を含む): 42285751872

約数和(自身を除く): 22120077147

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 41, 45, 63, 75, 105, 123, 175, 205, 225, 287, 315, 369, 525, 615, 861, 1025, 1435, 1575, 1845, 2583, 3075, 4305, 7175, 9225, 12915, 21525, 64575, 312283, 936849, 1561415, 2185981, 2810547, 4684245, 6557943, 7807075, 10929905, 12803603, 14052735, 19673829, 23421225, 32789715, 38410809, 54649525, 64018015, 70263675, 89625221, 98369145, 115232427, 163948575, 192054045, 268875663, 320090075, 448126105, 491845725, 576162135, 806626989, 960270225, 1344378315, 2240630525, 2880810675, 4033134945, 6721891575, 20165674725]

約数ペア:

[(1, 20165674725), (3, 6721891575), (5, 4033134945), (7, 2880810675), (9, 2240630525), (15, 1344378315), (21, 960270225), (25, 806626989), (35, 576162135), (41, 491845725), (45, 448126105), (63, 320090075), (75, 268875663), (105, 192054045), (123, 163948575), (175, 115232427), (205, 98369145), (225, 89625221), (287, 70263675), (315, 64018015), (369, 54649525), (525, 38410809), (615, 32789715), (861, 23421225), (1025, 19673829), (1435, 14052735), (1575, 12803603), (1845, 10929905), (2583, 7807075), (3075, 6557943), (4305, 4684245), (7175, 2810547), (9225, 2185981), (12915, 1561415), (21525, 936849), (64575, 312283)]