51999400

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{8387}}^1$

素因数の和:8434

約数の個数: 48

約数和(自身を含む): 124813440

約数和(自身を除く): 72814040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 1240, 1550, 3100, 6200, 8387, 16774, 33548, 41935, 67096, 83870, 167740, 209675, 259997, 335480, 419350, 519994, 838700, 1039988, 1299985, 1677400, 2079976, 2599970, 5199940, 6499925, 10399880, 12999850, 25999700, 51999400]

約数ペア:

[(1, 51999400), (2, 25999700), (4, 12999850), (5, 10399880), (8, 6499925), (10, 5199940), (20, 2599970), (25, 2079976), (31, 1677400), (40, 1299985), (50, 1039988), (62, 838700), (100, 519994), (124, 419350), (155, 335480), (200, 259997), (248, 209675), (310, 167740), (620, 83870), (775, 67096), (1240, 41935), (1550, 33548), (3100, 16774), (6200, 8387)]