199402480

素因数分解:

$2^4\times 5^1\times {\mathrm{239}}^1\times {\mathrm{10429}}^1$

素因数の和:10681

約数の個数: 40

約数和(自身を含む): 465595200

約数和(自身を除く): 266192720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239, 478, 956, 1195, 1912, 2390, 3824, 4780, 9560, 10429, 19120, 20858, 41716, 52145, 83432, 104290, 166864, 208580, 417160, 834320, 2492531, 4985062, 9970124, 12462655, 19940248, 24925310, 39880496, 49850620, 99701240, 199402480]

約数ペア:

[(1, 199402480), (2, 99701240), (4, 49850620), (5, 39880496), (8, 24925310), (10, 19940248), (16, 12462655), (20, 9970124), (40, 4985062), (80, 2492531), (239, 834320), (478, 417160), (956, 208580), (1195, 166864), (1912, 104290), (2390, 83432), (3824, 52145), (4780, 41716), (9560, 20858), (10429, 19120)]