20804948385

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{227}}^1\times {\mathrm{5281}}^1$

素因数の和:5618

約数の個数: 64

約数和(自身を含む): 36417911040

約数和(自身を除く): 15612962655

約数列:

[1, 3, 5, 13, 15, 39, 65, 89, 195, 227, 267, 445, 681, 1135, 1157, 1335, 2951, 3405, 3471, 5281, 5785, 8853, 14755, 15843, 17355, 20203, 26405, 44265, 60609, 68653, 79215, 101015, 205959, 262639, 303045, 343265, 470009, 787917, 1029795, 1198787, 1313195, 1410027, 2350045, 3596361, 3939585, 5993935, 6110117, 7050135, 15584231, 17981805, 18330351, 30550585, 46752693, 77921155, 91651755, 106692043, 233763465, 320076129, 533460215, 1386996559, 1600380645, 4160989677, 6934982795, 20804948385]

約数ペア:

[(1, 20804948385), (3, 6934982795), (5, 4160989677), (13, 1600380645), (15, 1386996559), (39, 533460215), (65, 320076129), (89, 233763465), (195, 106692043), (227, 91651755), (267, 77921155), (445, 46752693), (681, 30550585), (1135, 18330351), (1157, 17981805), (1335, 15584231), (2951, 7050135), (3405, 6110117), (3471, 5993935), (5281, 3939585), (5785, 3596361), (8853, 2350045), (14755, 1410027), (15843, 1313195), (17355, 1198787), (20203, 1029795), (26405, 787917), (44265, 470009), (60609, 343265), (68653, 303045), (79215, 262639), (101015, 205959)]