15197720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{19997}}^1$

素因数の和:20027

約数の個数: 32

約数和(自身を含む): 35996400

約数和(自身を除く): 20798680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 19997, 39994, 79988, 99985, 159976, 199970, 379943, 399940, 759886, 799880, 1519772, 1899715, 3039544, 3799430, 7598860, 15197720]

約数ペア:

[(1, 15197720), (2, 7598860), (4, 3799430), (5, 3039544), (8, 1899715), (10, 1519772), (19, 799880), (20, 759886), (38, 399940), (40, 379943), (76, 199970), (95, 159976), (152, 99985), (190, 79988), (380, 39994), (760, 19997)]