20218673620

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{809}}^1\times {\mathrm{9539}}^1$

素因数の和:10488

約数の個数: 48

約数和(自身を含む): 42840705600

約数和(自身を除く): 22622031980

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 809, 1310, 1618, 2620, 3236, 4045, 8090, 9539, 16180, 19078, 38156, 47695, 95390, 105979, 190780, 211958, 423916, 529895, 1059790, 1249609, 2119580, 2499218, 4998436, 6248045, 7717051, 12496090, 15434102, 24992180, 30868204, 38585255, 77170510, 154341020, 1010933681, 2021867362, 4043734724, 5054668405, 10109336810, 20218673620]

約数ペア:

[(1, 20218673620), (2, 10109336810), (4, 5054668405), (5, 4043734724), (10, 2021867362), (20, 1010933681), (131, 154341020), (262, 77170510), (524, 38585255), (655, 30868204), (809, 24992180), (1310, 15434102), (1618, 12496090), (2620, 7717051), (3236, 6248045), (4045, 4998436), (8090, 2499218), (9539, 2119580), (16180, 1249609), (19078, 1059790), (38156, 529895), (47695, 423916), (95390, 211958), (105979, 190780)]