31720158

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{677}}^1$

素因数の和:841

約数の個数: 48

約数和(自身を含む): 72979920

約数和(自身を除く): 41259762

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 137, 171, 274, 342, 411, 677, 822, 1233, 1354, 2031, 2466, 2603, 4062, 5206, 6093, 7809, 12186, 12863, 15618, 23427, 25726, 38589, 46854, 77178, 92749, 115767, 185498, 231534, 278247, 556494, 834741, 1669482, 1762231, 3524462, 5286693, 10573386, 15860079, 31720158]

約数ペア:

[(1, 31720158), (2, 15860079), (3, 10573386), (6, 5286693), (9, 3524462), (18, 1762231), (19, 1669482), (38, 834741), (57, 556494), (114, 278247), (137, 231534), (171, 185498), (274, 115767), (342, 92749), (411, 77178), (677, 46854), (822, 38589), (1233, 25726), (1354, 23427), (2031, 15618), (2466, 12863), (2603, 12186), (4062, 7809), (5206, 6093)]