19829780

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{211}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 43309056

約数和(自身を除く): 23479276

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 127, 148, 185, 211, 254, 370, 422, 508, 635, 740, 844, 1055, 1270, 2110, 2540, 4220, 4699, 7807, 9398, 15614, 18796, 23495, 26797, 31228, 39035, 46990, 53594, 78070, 93980, 107188, 133985, 156140, 267970, 535940, 991489, 1982978, 3965956, 4957445, 9914890, 19829780]

約数ペア:

[(1, 19829780), (2, 9914890), (4, 4957445), (5, 3965956), (10, 1982978), (20, 991489), (37, 535940), (74, 267970), (127, 156140), (148, 133985), (185, 107188), (211, 93980), (254, 78070), (370, 53594), (422, 46990), (508, 39035), (635, 31228), (740, 26797), (844, 23495), (1055, 18796), (1270, 15614), (2110, 9398), (2540, 7807), (4220, 4699)]