128587745

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:266

約数の個数: 64

約数和(自身を含む): 195955200

約数和(自身を除く): 67367455

約数列:

[1, 5, 11, 13, 17, 55, 65, 71, 85, 143, 149, 187, 221, 355, 715, 745, 781, 923, 935, 1105, 1207, 1639, 1937, 2431, 2533, 3905, 4615, 6035, 8195, 9685, 10153, 10579, 12155, 12665, 13277, 15691, 21307, 27863, 32929, 50765, 52895, 66385, 78455, 106535, 116369, 137527, 139315, 164645, 172601, 179843, 362219, 581845, 687635, 863005, 899215, 1512797, 1811095, 1978273, 2337959, 7563985, 9891365, 11689795, 25717549, 128587745]

約数ペア:

[(1, 128587745), (5, 25717549), (11, 11689795), (13, 9891365), (17, 7563985), (55, 2337959), (65, 1978273), (71, 1811095), (85, 1512797), (143, 899215), (149, 863005), (187, 687635), (221, 581845), (355, 362219), (715, 179843), (745, 172601), (781, 164645), (923, 139315), (935, 137527), (1105, 116369), (1207, 106535), (1639, 78455), (1937, 66385), (2431, 52895), (2533, 50765), (3905, 32929), (4615, 27863), (6035, 21307), (8195, 15691), (9685, 13277), (10153, 12665), (10579, 12155)]