1289710160

素因数分解:

$2^4\times 5^1\times {\mathrm{1993}}^1\times {\mathrm{8089}}^1$

素因数の和:10095

約数の個数: 40

約数和(自身を含む): 3000451560

約数和(自身を除く): 1710741400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1993, 3986, 7972, 8089, 9965, 15944, 16178, 19930, 31888, 32356, 39860, 40445, 64712, 79720, 80890, 129424, 159440, 161780, 323560, 647120, 16121377, 32242754, 64485508, 80606885, 128971016, 161213770, 257942032, 322427540, 644855080, 1289710160]

約数ペア:

[(1, 1289710160), (2, 644855080), (4, 322427540), (5, 257942032), (8, 161213770), (10, 128971016), (16, 80606885), (20, 64485508), (40, 32242754), (80, 16121377), (1993, 647120), (3986, 323560), (7972, 161780), (8089, 159440), (9965, 129424), (15944, 80890), (16178, 79720), (19930, 64712), (31888, 40445), (32356, 39860)]