81124160

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19501}}^1$

素因数の和:19531

約数の個数: 56

約数和(自身を含む): 208047336

約数和(自身を除く): 126923176

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 19501, 39002, 78004, 97505, 156008, 195010, 253513, 312016, 390020, 507026, 624032, 780040, 1014052, 1248064, 1267565, 1560080, 2028104, 2535130, 3120160, 4056208, 5070260, 6240320, 8112416, 10140520, 16224832, 20281040, 40562080, 81124160]

約数ペア:

[(1, 81124160), (2, 40562080), (4, 20281040), (5, 16224832), (8, 10140520), (10, 8112416), (13, 6240320), (16, 5070260), (20, 4056208), (26, 3120160), (32, 2535130), (40, 2028104), (52, 1560080), (64, 1267565), (65, 1248064), (80, 1014052), (104, 780040), (130, 624032), (160, 507026), (208, 390020), (260, 312016), (320, 253513), (416, 195010), (520, 156008), (832, 97505), (1040, 78004), (2080, 39002), (4160, 19501)]