18164380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3677}}^1$

素因数の和:3718

約数の個数: 48

約数和(自身を含む): 43253280

約数和(自身を除く): 25088900

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 3677, 4940, 7354, 14708, 18385, 36770, 47801, 69863, 73540, 95602, 139726, 191204, 239005, 279452, 349315, 478010, 698630, 908219, 956020, 1397260, 1816438, 3632876, 4541095, 9082190, 18164380]

約数ペア:

[(1, 18164380), (2, 9082190), (4, 4541095), (5, 3632876), (10, 1816438), (13, 1397260), (19, 956020), (20, 908219), (26, 698630), (38, 478010), (52, 349315), (65, 279452), (76, 239005), (95, 191204), (130, 139726), (190, 95602), (247, 73540), (260, 69863), (380, 47801), (494, 36770), (988, 18385), (1235, 14708), (2470, 7354), (3677, 4940)]