405756820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{29879}}^1$

素因数の和:29992

約数の個数: 48

約数和(自身を含む): 983888640

約数和(自身を除く): 578131820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 97, 140, 194, 388, 485, 679, 970, 1358, 1940, 2716, 3395, 6790, 13580, 29879, 59758, 119516, 149395, 209153, 298790, 418306, 597580, 836612, 1045765, 2091530, 2898263, 4183060, 5796526, 11593052, 14491315, 20287841, 28982630, 40575682, 57965260, 81151364, 101439205, 202878410, 405756820]

約数ペア:

[(1, 405756820), (2, 202878410), (4, 101439205), (5, 81151364), (7, 57965260), (10, 40575682), (14, 28982630), (20, 20287841), (28, 14491315), (35, 11593052), (70, 5796526), (97, 4183060), (140, 2898263), (194, 2091530), (388, 1045765), (485, 836612), (679, 597580), (970, 418306), (1358, 298790), (1940, 209153), (2716, 149395), (3395, 119516), (6790, 59758), (13580, 29879)]