397200720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{236429}}^1$

素因数の和:236452

約数の個数: 80

約数和(自身を含む): 1407231360

約数和(自身を除く): 1010030640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 236429, 472858, 709287, 945716, 1182145, 1418574, 1655003, 1891432, 2364290, 2837148, 3310006, 3546435, 3782864, 4728580, 4965009, 5674296, 6620012, 7092870, 8275015, 9457160, 9930018, 11348592, 13240024, 14185740, 16550030, 18914320, 19860036, 24825045, 26480048, 28371480, 33100060, 39720072, 49650090, 56742960, 66200120, 79440144, 99300180, 132400240, 198600360, 397200720]

約数ペア:

[(1, 397200720), (2, 198600360), (3, 132400240), (4, 99300180), (5, 79440144), (6, 66200120), (7, 56742960), (8, 49650090), (10, 39720072), (12, 33100060), (14, 28371480), (15, 26480048), (16, 24825045), (20, 19860036), (21, 18914320), (24, 16550030), (28, 14185740), (30, 13240024), (35, 11348592), (40, 9930018), (42, 9457160), (48, 8275015), (56, 7092870), (60, 6620012), (70, 5674296), (80, 4965009), (84, 4728580), (105, 3782864), (112, 3546435), (120, 3310006), (140, 2837148), (168, 2364290), (210, 1891432), (240, 1655003), (280, 1418574), (336, 1182145), (420, 945716), (560, 709287), (840, 472858), (1680, 236429)]