25890865

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{739}}^1$

素因数の和:782

約数の個数: 48

約数和(自身を含む): 42517440

約数和(自身を除く): 16626575

約数列:

[1, 5, 7, 11, 13, 35, 49, 55, 65, 77, 91, 143, 245, 385, 455, 539, 637, 715, 739, 1001, 2695, 3185, 3695, 5005, 5173, 7007, 8129, 9607, 25865, 35035, 36211, 40645, 48035, 56903, 67249, 105677, 181055, 284515, 336245, 398321, 470743, 528385, 739739, 1991605, 2353715, 3698695, 5178173, 25890865]

約数ペア:

[(1, 25890865), (5, 5178173), (7, 3698695), (11, 2353715), (13, 1991605), (35, 739739), (49, 528385), (55, 470743), (65, 398321), (77, 336245), (91, 284515), (143, 181055), (245, 105677), (385, 67249), (455, 56903), (539, 48035), (637, 40645), (715, 36211), (739, 35035), (1001, 25865), (2695, 9607), (3185, 8129), (3695, 7007), (5005, 5173)]