18963540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{769}}^1$

素因数の和:921

約数の個数: 72

約数和(自身を含む): 58017960

約数和(自身を除く): 39054420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 137, 180, 274, 411, 548, 685, 769, 822, 1233, 1370, 1538, 1644, 2055, 2307, 2466, 2740, 3076, 3845, 4110, 4614, 4932, 6165, 6921, 7690, 8220, 9228, 11535, 12330, 13842, 15380, 23070, 24660, 27684, 34605, 46140, 69210, 105353, 138420, 210706, 316059, 421412, 526765, 632118, 948177, 1053530, 1264236, 1580295, 1896354, 2107060, 3160590, 3792708, 4740885, 6321180, 9481770, 18963540]

約数ペア:

[(1, 18963540), (2, 9481770), (3, 6321180), (4, 4740885), (5, 3792708), (6, 3160590), (9, 2107060), (10, 1896354), (12, 1580295), (15, 1264236), (18, 1053530), (20, 948177), (30, 632118), (36, 526765), (45, 421412), (60, 316059), (90, 210706), (137, 138420), (180, 105353), (274, 69210), (411, 46140), (548, 34605), (685, 27684), (769, 24660), (822, 23070), (1233, 15380), (1370, 13842), (1538, 12330), (1644, 11535), (2055, 9228), (2307, 8220), (2466, 7690), (2740, 6921), (3076, 6165), (3845, 4932), (4110, 4614)]