20948730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:260

約数の個数: 96

約数和(自身を含む): 57456000

約数和(自身を除く): 36507270

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 29, 30, 33, 55, 58, 66, 87, 110, 121, 145, 165, 174, 199, 242, 290, 319, 330, 363, 398, 435, 597, 605, 638, 726, 870, 957, 995, 1194, 1210, 1595, 1815, 1914, 1990, 2189, 2985, 3190, 3509, 3630, 4378, 4785, 5771, 5970, 6567, 7018, 9570, 10527, 10945, 11542, 13134, 17313, 17545, 21054, 21890, 24079, 28855, 32835, 34626, 35090, 48158, 52635, 57710, 63481, 65670, 72237, 86565, 105270, 120395, 126962, 144474, 173130, 190443, 240790, 317405, 361185, 380886, 634810, 698291, 722370, 952215, 1396582, 1904430, 2094873, 3491455, 4189746, 6982910, 10474365, 20948730]

約数ペア:

[(1, 20948730), (2, 10474365), (3, 6982910), (5, 4189746), (6, 3491455), (10, 2094873), (11, 1904430), (15, 1396582), (22, 952215), (29, 722370), (30, 698291), (33, 634810), (55, 380886), (58, 361185), (66, 317405), (87, 240790), (110, 190443), (121, 173130), (145, 144474), (165, 126962), (174, 120395), (199, 105270), (242, 86565), (290, 72237), (319, 65670), (330, 63481), (363, 57710), (398, 52635), (435, 48158), (597, 35090), (605, 34626), (638, 32835), (726, 28855), (870, 24079), (957, 21890), (995, 21054), (1194, 17545), (1210, 17313), (1595, 13134), (1815, 11542), (1914, 10945), (1990, 10527), (2189, 9570), (2985, 7018), (3190, 6567), (3509, 5970), (3630, 5771), (4378, 4785)]