20168760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1283}}^1$

素因数の和:1428

約数の個数: 64

約数和(自身を含む): 61015680

約数和(自身を除く): 40846920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 131, 262, 393, 524, 655, 786, 1048, 1283, 1310, 1572, 1965, 2566, 2620, 3144, 3849, 3930, 5132, 5240, 6415, 7698, 7860, 10264, 12830, 15396, 15720, 19245, 25660, 30792, 38490, 51320, 76980, 153960, 168073, 336146, 504219, 672292, 840365, 1008438, 1344584, 1680730, 2016876, 2521095, 3361460, 4033752, 5042190, 6722920, 10084380, 20168760]

約数ペア:

[(1, 20168760), (2, 10084380), (3, 6722920), (4, 5042190), (5, 4033752), (6, 3361460), (8, 2521095), (10, 2016876), (12, 1680730), (15, 1344584), (20, 1008438), (24, 840365), (30, 672292), (40, 504219), (60, 336146), (120, 168073), (131, 153960), (262, 76980), (393, 51320), (524, 38490), (655, 30792), (786, 25660), (1048, 19245), (1283, 15720), (1310, 15396), (1572, 12830), (1965, 10264), (2566, 7860), (2620, 7698), (3144, 6415), (3849, 5240), (3930, 5132)]