305340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{727}}^1$

素因数の和:746

約数の個数: 48

約数和(自身を含む): 978432

約数和(自身を除く): 673092

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, 727, 1454, 2181, 2908, 3635, 4362, 5089, 7270, 8724, 10178, 10905, 14540, 15267, 20356, 21810, 25445, 30534, 43620, 50890, 61068, 76335, 101780, 152670, 305340]

約数ペア:

[(1, 305340), (2, 152670), (3, 101780), (4, 76335), (5, 61068), (6, 50890), (7, 43620), (10, 30534), (12, 25445), (14, 21810), (15, 20356), (20, 15267), (21, 14540), (28, 10905), (30, 10178), (35, 8724), (42, 7270), (60, 5089), (70, 4362), (84, 3635), (105, 2908), (140, 2181), (210, 1454), (420, 727)]