618996825

素因数分解:

$3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{467}}^1$

素因数の和:663

約数の個数: 72

約数和(自身を含む): 1145203488

約数和(自身を除く): 526206663

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 75, 129, 137, 215, 225, 387, 411, 467, 645, 685, 1075, 1233, 1401, 1935, 2055, 2335, 3225, 3425, 4203, 5891, 6165, 7005, 9675, 10275, 11675, 17673, 20081, 21015, 29455, 30825, 35025, 53019, 60243, 63979, 88365, 100405, 105075, 147275, 180729, 191937, 265095, 301215, 319895, 441825, 502025, 575811, 903645, 959685, 1325475, 1506075, 1599475, 2751097, 2879055, 4518225, 4798425, 8253291, 13755485, 14395275, 24759873, 41266455, 68777425, 123799365, 206332275, 618996825]

約数ペア:

[(1, 618996825), (3, 206332275), (5, 123799365), (9, 68777425), (15, 41266455), (25, 24759873), (43, 14395275), (45, 13755485), (75, 8253291), (129, 4798425), (137, 4518225), (215, 2879055), (225, 2751097), (387, 1599475), (411, 1506075), (467, 1325475), (645, 959685), (685, 903645), (1075, 575811), (1233, 502025), (1401, 441825), (1935, 319895), (2055, 301215), (2335, 265095), (3225, 191937), (3425, 180729), (4203, 147275), (5891, 105075), (6165, 100405), (7005, 88365), (9675, 63979), (10275, 60243), (11675, 53019), (17673, 35025), (20081, 30825), (21015, 29455)]