20334560

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6689}}^1$

素因数の和:6723

約数の個数: 48

約数和(自身を含む): 50576400

約数和(自身を除く): 30241840

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 6689, 13378, 26756, 33445, 53512, 66890, 107024, 127091, 133780, 214048, 254182, 267560, 508364, 535120, 635455, 1016728, 1070240, 1270910, 2033456, 2541820, 4066912, 5083640, 10167280, 20334560]

約数ペア:

[(1, 20334560), (2, 10167280), (4, 5083640), (5, 4066912), (8, 2541820), (10, 2033456), (16, 1270910), (19, 1070240), (20, 1016728), (32, 635455), (38, 535120), (40, 508364), (76, 267560), (80, 254182), (95, 214048), (152, 133780), (160, 127091), (190, 107024), (304, 66890), (380, 53512), (608, 33445), (760, 26756), (1520, 13378), (3040, 6689)]