415026820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{122789}}^1$

素因数の和:122824

約数の個数: 36

約数和(自身を含む): 943763940

約数和(自身を除く): 528737120

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 122789, 245578, 491156, 613945, 1227890, 1596257, 2455780, 3192514, 6385028, 7981285, 15962570, 20751341, 31925140, 41502682, 83005364, 103756705, 207513410, 415026820]

約数ペア:

[(1, 415026820), (2, 207513410), (4, 103756705), (5, 83005364), (10, 41502682), (13, 31925140), (20, 20751341), (26, 15962570), (52, 7981285), (65, 6385028), (130, 3192514), (169, 2455780), (260, 1596257), (338, 1227890), (676, 613945), (845, 491156), (1690, 245578), (3380, 122789)]