20871810

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3361}}^1$

素因数の和:3400

約数の個数: 64

約数和(自身を含む): 58095360

約数和(自身を除く): 37223550

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 45, 46, 54, 69, 90, 115, 135, 138, 207, 230, 270, 345, 414, 621, 690, 1035, 1242, 2070, 3105, 3361, 6210, 6722, 10083, 16805, 20166, 30249, 33610, 50415, 60498, 77303, 90747, 100830, 151245, 154606, 181494, 231909, 302490, 386515, 453735, 463818, 695727, 773030, 907470, 1159545, 1391454, 2087181, 2319090, 3478635, 4174362, 6957270, 10435905, 20871810]

約数ペア:

[(1, 20871810), (2, 10435905), (3, 6957270), (5, 4174362), (6, 3478635), (9, 2319090), (10, 2087181), (15, 1391454), (18, 1159545), (23, 907470), (27, 773030), (30, 695727), (45, 463818), (46, 453735), (54, 386515), (69, 302490), (90, 231909), (115, 181494), (135, 154606), (138, 151245), (207, 100830), (230, 90747), (270, 77303), (345, 60498), (414, 50415), (621, 33610), (690, 30249), (1035, 20166), (1242, 16805), (2070, 10083), (3105, 6722), (3361, 6210)]