940097980

素因数分解:

$2^2\times 5^1\times {\mathrm{653}}^1\times {\mathrm{71983}}^1$

素因数の和:72645

約数の個数: 24

約数和(自身を含む): 1977256512

約数和(自身を除く): 1037158532

約数列:

[1, 2, 4, 5, 10, 20, 653, 1306, 2612, 3265, 6530, 13060, 71983, 143966, 287932, 359915, 719830, 1439660, 47004899, 94009798, 188019596, 235024495, 470048990, 940097980]

約数ペア:

[(1, 940097980), (2, 470048990), (4, 235024495), (5, 188019596), (10, 94009798), (20, 47004899), (653, 1439660), (1306, 719830), (2612, 359915), (3265, 287932), (6530, 143966), (13060, 71983)]