20890170

素因数分解:

$2^1\times 3^3\times 5^1\times 7^2\times {\mathrm{1579}}^1$

素因数の和:1609

約数の個数: 96

約数和(自身を含む): 64843200

約数和(自身を除く): 43953030

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 49, 54, 63, 70, 90, 98, 105, 126, 135, 147, 189, 210, 245, 270, 294, 315, 378, 441, 490, 630, 735, 882, 945, 1323, 1470, 1579, 1890, 2205, 2646, 3158, 4410, 4737, 6615, 7895, 9474, 11053, 13230, 14211, 15790, 22106, 23685, 28422, 33159, 42633, 47370, 55265, 66318, 71055, 77371, 85266, 99477, 110530, 142110, 154742, 165795, 198954, 213165, 232113, 298431, 331590, 386855, 426330, 464226, 497385, 596862, 696339, 773710, 994770, 1160565, 1392678, 1492155, 2089017, 2321130, 2984310, 3481695, 4178034, 6963390, 10445085, 20890170]

約数ペア:

[(1, 20890170), (2, 10445085), (3, 6963390), (5, 4178034), (6, 3481695), (7, 2984310), (9, 2321130), (10, 2089017), (14, 1492155), (15, 1392678), (18, 1160565), (21, 994770), (27, 773710), (30, 696339), (35, 596862), (42, 497385), (45, 464226), (49, 426330), (54, 386855), (63, 331590), (70, 298431), (90, 232113), (98, 213165), (105, 198954), (126, 165795), (135, 154742), (147, 142110), (189, 110530), (210, 99477), (245, 85266), (270, 77371), (294, 71055), (315, 66318), (378, 55265), (441, 47370), (490, 42633), (630, 33159), (735, 28422), (882, 23685), (945, 22106), (1323, 15790), (1470, 14211), (1579, 13230), (1890, 11053), (2205, 9474), (2646, 7895), (3158, 6615), (4410, 4737)]