18902940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{45007}}^1$

素因数の和:45026

約数の個数: 48

約数和(自身を含む): 60490752

約数和(自身を除く): 41587812

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 45007, 90014, 135021, 180028, 225035, 270042, 315049, 450070, 540084, 630098, 675105, 900140, 945147, 1260196, 1350210, 1575245, 1890294, 2700420, 3150490, 3780588, 4725735, 6300980, 9451470, 18902940]

約数ペア:

[(1, 18902940), (2, 9451470), (3, 6300980), (4, 4725735), (5, 3780588), (6, 3150490), (7, 2700420), (10, 1890294), (12, 1575245), (14, 1350210), (15, 1260196), (20, 945147), (21, 900140), (28, 675105), (30, 630098), (35, 540084), (42, 450070), (60, 315049), (70, 270042), (84, 225035), (105, 180028), (140, 135021), (210, 90014), (420, 45007)]