7212975

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1249}}^1$

素因数の和:1280

約数の個数: 48

約数和(自身を含む): 14880000

約数和(自身を除く): 7667025

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 33, 35, 55, 75, 77, 105, 165, 175, 231, 275, 385, 525, 825, 1155, 1249, 1925, 3747, 5775, 6245, 8743, 13739, 18735, 26229, 31225, 41217, 43715, 68695, 93675, 96173, 131145, 206085, 218575, 288519, 343475, 480865, 655725, 1030425, 1442595, 2404325, 7212975]

約数ペア:

[(1, 7212975), (3, 2404325), (5, 1442595), (7, 1030425), (11, 655725), (15, 480865), (21, 343475), (25, 288519), (33, 218575), (35, 206085), (55, 131145), (75, 96173), (77, 93675), (105, 68695), (165, 43715), (175, 41217), (231, 31225), (275, 26229), (385, 18735), (525, 13739), (825, 8743), (1155, 6245), (1249, 5775), (1925, 3747)]