7923825

素因数分解:

$3^4\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1$

素因数の和:85

約数の個数: 120

約数和(自身を含む): 18484928

約数和(自身を除く): 10561103

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 25, 27, 35, 39, 43, 45, 63, 65, 75, 81, 91, 105, 117, 129, 135, 175, 189, 195, 215, 225, 273, 301, 315, 325, 351, 387, 405, 455, 525, 559, 567, 585, 645, 675, 819, 903, 945, 975, 1053, 1075, 1161, 1365, 1505, 1575, 1677, 1755, 1935, 2025, 2275, 2457, 2709, 2795, 2835, 2925, 3225, 3483, 3913, 4095, 4515, 4725, 5031, 5265, 5805, 6825, 7371, 7525, 8127, 8385, 8775, 9675, 11739, 12285, 13545, 13975, 14175, 15093, 17415, 19565, 20475, 22575, 24381, 25155, 26325, 29025, 35217, 36855, 40635, 41925, 45279, 58695, 61425, 67725, 75465, 87075, 97825, 105651, 121905, 125775, 176085, 184275, 203175, 226395, 293475, 316953, 377325, 528255, 609525, 880425, 1131975, 1584765, 2641275, 7923825]

約数ペア:

[(1, 7923825), (3, 2641275), (5, 1584765), (7, 1131975), (9, 880425), (13, 609525), (15, 528255), (21, 377325), (25, 316953), (27, 293475), (35, 226395), (39, 203175), (43, 184275), (45, 176085), (63, 125775), (65, 121905), (75, 105651), (81, 97825), (91, 87075), (105, 75465), (117, 67725), (129, 61425), (135, 58695), (175, 45279), (189, 41925), (195, 40635), (215, 36855), (225, 35217), (273, 29025), (301, 26325), (315, 25155), (325, 24381), (351, 22575), (387, 20475), (405, 19565), (455, 17415), (525, 15093), (559, 14175), (567, 13975), (585, 13545), (645, 12285), (675, 11739), (819, 9675), (903, 8775), (945, 8385), (975, 8127), (1053, 7525), (1075, 7371), (1161, 6825), (1365, 5805), (1505, 5265), (1575, 5031), (1677, 4725), (1755, 4515), (1935, 4095), (2025, 3913), (2275, 3483), (2457, 3225), (2709, 2925), (2795, 2835)]