81640130

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1543}}^1$

素因数の和:1611

約数の個数: 64

約数和(自身を含む): 177424128

約数和(自身を除く): 95783998

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 37, 55, 65, 74, 110, 130, 143, 185, 286, 370, 407, 481, 715, 814, 962, 1430, 1543, 2035, 2405, 3086, 4070, 4810, 5291, 7715, 10582, 15430, 16973, 20059, 26455, 33946, 40118, 52910, 57091, 84865, 100295, 114182, 169730, 200590, 220649, 285455, 441298, 570910, 628001, 742183, 1103245, 1256002, 1484366, 2206490, 3140005, 3710915, 6280010, 7421830, 8164013, 16328026, 40820065, 81640130]

約数ペア:

[(1, 81640130), (2, 40820065), (5, 16328026), (10, 8164013), (11, 7421830), (13, 6280010), (22, 3710915), (26, 3140005), (37, 2206490), (55, 1484366), (65, 1256002), (74, 1103245), (110, 742183), (130, 628001), (143, 570910), (185, 441298), (286, 285455), (370, 220649), (407, 200590), (481, 169730), (715, 114182), (814, 100295), (962, 84865), (1430, 57091), (1543, 52910), (2035, 40118), (2405, 33946), (3086, 26455), (4070, 20059), (4810, 16973), (5291, 15430), (7715, 10582)]