66216940

素因数分解:

$2^2\times 5^1\times {\mathrm{1697}}^1\times {\mathrm{1951}}^1$

素因数の和:3657

約数の個数: 24

約数和(自身を含む): 139208832

約数和(自身を除く): 72991892

約数列:

[1, 2, 4, 5, 10, 20, 1697, 1951, 3394, 3902, 6788, 7804, 8485, 9755, 16970, 19510, 33940, 39020, 3310847, 6621694, 13243388, 16554235, 33108470, 66216940]

約数ペア:

[(1, 66216940), (2, 33108470), (4, 16554235), (5, 13243388), (10, 6621694), (20, 3310847), (1697, 39020), (1951, 33940), (3394, 19510), (3902, 16970), (6788, 9755), (7804, 8485)]