20913270

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1879}}^1$

素因数の和:1949

約数の個数: 64

約数和(自身を含む): 58475520

約数和(自身を除く): 37562250

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 53, 70, 105, 106, 159, 210, 265, 318, 371, 530, 742, 795, 1113, 1590, 1855, 1879, 2226, 3710, 3758, 5565, 5637, 9395, 11130, 11274, 13153, 18790, 26306, 28185, 39459, 56370, 65765, 78918, 99587, 131530, 197295, 199174, 298761, 394590, 497935, 597522, 697109, 995870, 1394218, 1493805, 2091327, 2987610, 3485545, 4182654, 6971090, 10456635, 20913270]

約数ペア:

[(1, 20913270), (2, 10456635), (3, 6971090), (5, 4182654), (6, 3485545), (7, 2987610), (10, 2091327), (14, 1493805), (15, 1394218), (21, 995870), (30, 697109), (35, 597522), (42, 497935), (53, 394590), (70, 298761), (105, 199174), (106, 197295), (159, 131530), (210, 99587), (265, 78918), (318, 65765), (371, 56370), (530, 39459), (742, 28185), (795, 26306), (1113, 18790), (1590, 13153), (1855, 11274), (1879, 11130), (2226, 9395), (3710, 5637), (3758, 5565)]