31987620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{479}}^1$

素因数の和:554

約数の個数: 144

約数和(自身を含む): 113218560

約数和(自身を除く): 81230940

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 53, 60, 63, 70, 84, 90, 105, 106, 126, 140, 159, 180, 210, 212, 252, 265, 315, 318, 371, 420, 477, 479, 530, 630, 636, 742, 795, 954, 958, 1060, 1113, 1260, 1437, 1484, 1590, 1855, 1908, 1916, 2226, 2385, 2395, 2874, 3180, 3339, 3353, 3710, 4311, 4452, 4770, 4790, 5565, 5748, 6678, 6706, 7185, 7420, 8622, 9540, 9580, 10059, 11130, 13356, 13412, 14370, 16695, 16765, 17244, 20118, 21555, 22260, 25387, 28740, 30177, 33390, 33530, 40236, 43110, 50295, 50774, 60354, 66780, 67060, 76161, 86220, 100590, 101548, 120708, 126935, 150885, 152322, 177709, 201180, 228483, 253870, 301770, 304644, 355418, 380805, 456966, 507740, 533127, 603540, 710836, 761610, 888545, 913932, 1066254, 1142415, 1523220, 1599381, 1777090, 2132508, 2284830, 2665635, 3198762, 3554180, 4569660, 5331270, 6397524, 7996905, 10662540, 15993810, 31987620]

約数ペア:

[(1, 31987620), (2, 15993810), (3, 10662540), (4, 7996905), (5, 6397524), (6, 5331270), (7, 4569660), (9, 3554180), (10, 3198762), (12, 2665635), (14, 2284830), (15, 2132508), (18, 1777090), (20, 1599381), (21, 1523220), (28, 1142415), (30, 1066254), (35, 913932), (36, 888545), (42, 761610), (45, 710836), (53, 603540), (60, 533127), (63, 507740), (70, 456966), (84, 380805), (90, 355418), (105, 304644), (106, 301770), (126, 253870), (140, 228483), (159, 201180), (180, 177709), (210, 152322), (212, 150885), (252, 126935), (265, 120708), (315, 101548), (318, 100590), (371, 86220), (420, 76161), (477, 67060), (479, 66780), (530, 60354), (630, 50774), (636, 50295), (742, 43110), (795, 40236), (954, 33530), (958, 33390), (1060, 30177), (1113, 28740), (1260, 25387), (1437, 22260), (1484, 21555), (1590, 20118), (1855, 17244), (1908, 16765), (1916, 16695), (2226, 14370), (2385, 13412), (2395, 13356), (2874, 11130), (3180, 10059), (3339, 9580), (3353, 9540), (3710, 8622), (4311, 7420), (4452, 7185), (4770, 6706), (4790, 6678), (5565, 5748)]