27958970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{499}}^1$

素因数の和:950

約数の個数: 32

約数和(自身を含む): 54432000

約数和(自身を除く): 26473030

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 431, 499, 862, 998, 2155, 2495, 4310, 4990, 5603, 6487, 11206, 12974, 28015, 32435, 56030, 64870, 215069, 430138, 1075345, 2150690, 2795897, 5591794, 13979485, 27958970]

約数ペア:

[(1, 27958970), (2, 13979485), (5, 5591794), (10, 2795897), (13, 2150690), (26, 1075345), (65, 430138), (130, 215069), (431, 64870), (499, 56030), (862, 32435), (998, 28015), (2155, 12974), (2495, 11206), (4310, 6487), (4990, 5603)]