20530070

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{47}}^1$

素因数の和:114

約数の個数: 72

約数和(自身を含む): 43781472

約数和(自身を除く): 23251402

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 47, 55, 94, 95, 110, 121, 190, 209, 235, 242, 361, 418, 470, 517, 605, 722, 893, 1034, 1045, 1210, 1786, 1805, 2090, 2299, 2585, 3610, 3971, 4465, 4598, 5170, 5687, 7942, 8930, 9823, 11374, 11495, 16967, 19646, 19855, 22990, 28435, 33934, 39710, 43681, 49115, 56870, 84835, 87362, 98230, 108053, 169670, 186637, 216106, 218405, 373274, 436810, 540265, 933185, 1080530, 1866370, 2053007, 4106014, 10265035, 20530070]

約数ペア:

[(1, 20530070), (2, 10265035), (5, 4106014), (10, 2053007), (11, 1866370), (19, 1080530), (22, 933185), (38, 540265), (47, 436810), (55, 373274), (94, 218405), (95, 216106), (110, 186637), (121, 169670), (190, 108053), (209, 98230), (235, 87362), (242, 84835), (361, 56870), (418, 49115), (470, 43681), (517, 39710), (605, 33934), (722, 28435), (893, 22990), (1034, 19855), (1045, 19646), (1210, 16967), (1786, 11495), (1805, 11374), (2090, 9823), (2299, 8930), (2585, 7942), (3610, 5687), (3971, 5170), (4465, 4598)]