40815980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{120047}}^1$

素因数の和:120073

約数の個数: 24

約数和(自身を含む): 90756288

約数和(自身を除く): 49940308

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 120047, 240094, 480188, 600235, 1200470, 2040799, 2400940, 4081598, 8163196, 10203995, 20407990, 40815980]

約数ペア:

[(1, 40815980), (2, 20407990), (4, 10203995), (5, 8163196), (10, 4081598), (17, 2400940), (20, 2040799), (34, 1200470), (68, 600235), (85, 480188), (170, 240094), (340, 120047)]