138961980

素因数分解:

$2^2\times 3^9\times 5^1\times {\mathrm{353}}^1$

素因数の和:389

約数の個数: 120

約数和(自身を含む): 438962832

約数和(自身を除く): 300000852

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 353, 405, 486, 540, 706, 729, 810, 972, 1059, 1215, 1412, 1458, 1620, 1765, 2118, 2187, 2430, 2916, 3177, 3530, 3645, 4236, 4374, 4860, 5295, 6354, 6561, 7060, 7290, 8748, 9531, 10590, 10935, 12708, 13122, 14580, 15885, 19062, 19683, 21180, 21870, 26244, 28593, 31770, 32805, 38124, 39366, 43740, 47655, 57186, 63540, 65610, 78732, 85779, 95310, 98415, 114372, 131220, 142965, 171558, 190620, 196830, 257337, 285930, 343116, 393660, 428895, 514674, 571860, 772011, 857790, 1029348, 1286685, 1544022, 1715580, 2316033, 2573370, 3088044, 3860055, 4632066, 5146740, 6948099, 7720110, 9264132, 11580165, 13896198, 15440220, 23160330, 27792396, 34740495, 46320660, 69480990, 138961980]

約数ペア:

[(1, 138961980), (2, 69480990), (3, 46320660), (4, 34740495), (5, 27792396), (6, 23160330), (9, 15440220), (10, 13896198), (12, 11580165), (15, 9264132), (18, 7720110), (20, 6948099), (27, 5146740), (30, 4632066), (36, 3860055), (45, 3088044), (54, 2573370), (60, 2316033), (81, 1715580), (90, 1544022), (108, 1286685), (135, 1029348), (162, 857790), (180, 772011), (243, 571860), (270, 514674), (324, 428895), (353, 393660), (405, 343116), (486, 285930), (540, 257337), (706, 196830), (729, 190620), (810, 171558), (972, 142965), (1059, 131220), (1215, 114372), (1412, 98415), (1458, 95310), (1620, 85779), (1765, 78732), (2118, 65610), (2187, 63540), (2430, 57186), (2916, 47655), (3177, 43740), (3530, 39366), (3645, 38124), (4236, 32805), (4374, 31770), (4860, 28593), (5295, 26244), (6354, 21870), (6561, 21180), (7060, 19683), (7290, 19062), (8748, 15885), (9531, 14580), (10590, 13122), (10935, 12708)]