317856840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{378401}}^1$

素因数の和:378422

約数の個数: 64

約数和(自身を含む): 1089797760

約数和(自身を除く): 771940920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 378401, 756802, 1135203, 1513604, 1892005, 2270406, 2648807, 3027208, 3784010, 4540812, 5297614, 5676015, 7568020, 7946421, 9081624, 10595228, 11352030, 13244035, 15136040, 15892842, 21190456, 22704060, 26488070, 31785684, 39732105, 45408120, 52976140, 63571368, 79464210, 105952280, 158928420, 317856840]

約数ペア:

[(1, 317856840), (2, 158928420), (3, 105952280), (4, 79464210), (5, 63571368), (6, 52976140), (7, 45408120), (8, 39732105), (10, 31785684), (12, 26488070), (14, 22704060), (15, 21190456), (20, 15892842), (21, 15136040), (24, 13244035), (28, 11352030), (30, 10595228), (35, 9081624), (40, 7946421), (42, 7568020), (56, 5676015), (60, 5297614), (70, 4540812), (84, 3784010), (105, 3027208), (120, 2648807), (140, 2270406), (168, 1892005), (210, 1513604), (280, 1135203), (420, 756802), (840, 378401)]