213984925

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1249}}^1$

素因数の和:1366

約数の個数: 48

約数和(自身を含む): 334800000

約数和(自身を除く): 120815075

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 89, 175, 275, 385, 445, 623, 979, 1249, 1925, 2225, 3115, 4895, 6245, 6853, 8743, 13739, 15575, 24475, 31225, 34265, 43715, 68695, 96173, 111161, 171325, 218575, 343475, 480865, 555805, 778127, 1222771, 2404325, 2779025, 3890635, 6113855, 8559397, 19453175, 30569275, 42796985, 213984925]

約数ペア:

[(1, 213984925), (5, 42796985), (7, 30569275), (11, 19453175), (25, 8559397), (35, 6113855), (55, 3890635), (77, 2779025), (89, 2404325), (175, 1222771), (275, 778127), (385, 555805), (445, 480865), (623, 343475), (979, 218575), (1249, 171325), (1925, 111161), (2225, 96173), (3115, 68695), (4895, 43715), (6245, 34265), (6853, 31225), (8743, 24475), (13739, 15575)]