28381350

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{431}}^1\times {\mathrm{439}}^1$

素因数の和:885

約数の個数: 48

約数和(自身を含む): 70709760

約数和(自身を除く): 42328410

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150, 431, 439, 862, 878, 1293, 1317, 2155, 2195, 2586, 2634, 4310, 4390, 6465, 6585, 10775, 10975, 12930, 13170, 21550, 21950, 32325, 32925, 64650, 65850, 189209, 378418, 567627, 946045, 1135254, 1892090, 2838135, 4730225, 5676270, 9460450, 14190675, 28381350]

約数ペア:

[(1, 28381350), (2, 14190675), (3, 9460450), (5, 5676270), (6, 4730225), (10, 2838135), (15, 1892090), (25, 1135254), (30, 946045), (50, 567627), (75, 378418), (150, 189209), (431, 65850), (439, 64650), (862, 32925), (878, 32325), (1293, 21950), (1317, 21550), (2155, 13170), (2195, 12930), (2586, 10975), (2634, 10775), (4310, 6585), (4390, 6465)]