78828815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:168

約数の個数: 64

約数和(自身を含む): 116121600

約数和(自身を除く): 37292785

約数列:

[1, 5, 13, 19, 29, 31, 65, 71, 95, 145, 155, 247, 355, 377, 403, 551, 589, 899, 923, 1235, 1349, 1885, 2015, 2059, 2201, 2755, 2945, 4495, 4615, 6745, 7163, 7657, 10295, 11005, 11687, 17081, 17537, 26767, 28613, 35815, 38285, 39121, 41819, 58435, 63829, 85405, 87685, 133835, 143065, 195605, 209095, 222053, 319145, 508573, 543647, 829777, 1110265, 1212751, 2542865, 2718235, 4148885, 6063755, 15765763, 78828815]

約数ペア:

[(1, 78828815), (5, 15765763), (13, 6063755), (19, 4148885), (29, 2718235), (31, 2542865), (65, 1212751), (71, 1110265), (95, 829777), (145, 543647), (155, 508573), (247, 319145), (355, 222053), (377, 209095), (403, 195605), (551, 143065), (589, 133835), (899, 87685), (923, 85405), (1235, 63829), (1349, 58435), (1885, 41819), (2015, 39121), (2059, 38285), (2201, 35815), (2755, 28613), (2945, 26767), (4495, 17537), (4615, 17081), (6745, 11687), (7163, 11005), (7657, 10295)]