81698580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3313}}^1$

素因数の和:3465

約数の個数: 72

約数和(自身を含む): 249703272

約数和(自身を除く): 168004692

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, 822, 1233, 1370, 1644, 2055, 2466, 2740, 3313, 4110, 4932, 6165, 6626, 8220, 9939, 12330, 13252, 16565, 19878, 24660, 29817, 33130, 39756, 49695, 59634, 66260, 99390, 119268, 149085, 198780, 298170, 453881, 596340, 907762, 1361643, 1815524, 2269405, 2723286, 4084929, 4538810, 5446572, 6808215, 8169858, 9077620, 13616430, 16339716, 20424645, 27232860, 40849290, 81698580]

約数ペア:

[(1, 81698580), (2, 40849290), (3, 27232860), (4, 20424645), (5, 16339716), (6, 13616430), (9, 9077620), (10, 8169858), (12, 6808215), (15, 5446572), (18, 4538810), (20, 4084929), (30, 2723286), (36, 2269405), (45, 1815524), (60, 1361643), (90, 907762), (137, 596340), (180, 453881), (274, 298170), (411, 198780), (548, 149085), (685, 119268), (822, 99390), (1233, 66260), (1370, 59634), (1644, 49695), (2055, 39756), (2466, 33130), (2740, 29817), (3313, 24660), (4110, 19878), (4932, 16565), (6165, 13252), (6626, 12330), (8220, 9939)]