389510520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{20161}}^1$

素因数の和:20205

約数の個数: 128

約数和(自身を含む): 1393597440

約数和(自身を除く): 1004086920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 56, 60, 69, 70, 84, 92, 105, 115, 120, 138, 140, 161, 168, 184, 210, 230, 276, 280, 322, 345, 420, 460, 483, 552, 644, 690, 805, 840, 920, 966, 1288, 1380, 1610, 1932, 2415, 2760, 3220, 3864, 4830, 6440, 9660, 19320, 20161, 40322, 60483, 80644, 100805, 120966, 141127, 161288, 201610, 241932, 282254, 302415, 403220, 423381, 463703, 483864, 564508, 604830, 705635, 806440, 846762, 927406, 1129016, 1209660, 1391109, 1411270, 1693524, 1854812, 2116905, 2318515, 2419320, 2782218, 2822540, 3245921, 3387048, 3709624, 4233810, 4637030, 5564436, 5645080, 6491842, 6955545, 8467620, 9274060, 9737763, 11128872, 12983684, 13911090, 16229605, 16935240, 18548120, 19475526, 25967368, 27822180, 32459210, 38951052, 48688815, 55644360, 64918420, 77902104, 97377630, 129836840, 194755260, 389510520]

約数ペア:

[(1, 389510520), (2, 194755260), (3, 129836840), (4, 97377630), (5, 77902104), (6, 64918420), (7, 55644360), (8, 48688815), (10, 38951052), (12, 32459210), (14, 27822180), (15, 25967368), (20, 19475526), (21, 18548120), (23, 16935240), (24, 16229605), (28, 13911090), (30, 12983684), (35, 11128872), (40, 9737763), (42, 9274060), (46, 8467620), (56, 6955545), (60, 6491842), (69, 5645080), (70, 5564436), (84, 4637030), (92, 4233810), (105, 3709624), (115, 3387048), (120, 3245921), (138, 2822540), (140, 2782218), (161, 2419320), (168, 2318515), (184, 2116905), (210, 1854812), (230, 1693524), (276, 1411270), (280, 1391109), (322, 1209660), (345, 1129016), (420, 927406), (460, 846762), (483, 806440), (552, 705635), (644, 604830), (690, 564508), (805, 483864), (840, 463703), (920, 423381), (966, 403220), (1288, 302415), (1380, 282254), (1610, 241932), (1932, 201610), (2415, 161288), (2760, 141127), (3220, 120966), (3864, 100805), (4830, 80644), (6440, 60483), (9660, 40322), (19320, 20161)]