398437904

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{35423}}^1$

素因数の和:35487

約数の個数: 40

約数和(自身を含む): 834589440

約数和(自身を除く): 436151536

約数列:

[1, 2, 4, 8, 16, 19, 37, 38, 74, 76, 148, 152, 296, 304, 592, 703, 1406, 2812, 5624, 11248, 35423, 70846, 141692, 283384, 566768, 673037, 1310651, 1346074, 2621302, 2692148, 5242604, 5384296, 10485208, 10768592, 20970416, 24902369, 49804738, 99609476, 199218952, 398437904]

約数ペア:

[(1, 398437904), (2, 199218952), (4, 99609476), (8, 49804738), (16, 24902369), (19, 20970416), (37, 10768592), (38, 10485208), (74, 5384296), (76, 5242604), (148, 2692148), (152, 2621302), (296, 1346074), (304, 1310651), (592, 673037), (703, 566768), (1406, 283384), (2812, 141692), (5624, 70846), (11248, 35423)]