18613660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{5507}}^1$

素因数の和:5542

約数の個数: 36

約数和(自身を含む): 42334488

約数和(自身を除く): 23720828

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 5507, 11014, 22028, 27535, 55070, 71591, 110140, 143182, 286364, 357955, 715910, 930683, 1431820, 1861366, 3722732, 4653415, 9306830, 18613660]

約数ペア:

[(1, 18613660), (2, 9306830), (4, 4653415), (5, 3722732), (10, 1861366), (13, 1431820), (20, 930683), (26, 715910), (52, 357955), (65, 286364), (130, 143182), (169, 110140), (260, 71591), (338, 55070), (676, 27535), (845, 22028), (1690, 11014), (3380, 5507)]