12997980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{72211}}^1$

素因数の和:72226

約数の個数: 36

約数和(自身を含む): 39427752

約数和(自身を除く): 26429772

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 72211, 144422, 216633, 288844, 361055, 433266, 649899, 722110, 866532, 1083165, 1299798, 1444220, 2166330, 2599596, 3249495, 4332660, 6498990, 12997980]

約数ペア:

[(1, 12997980), (2, 6498990), (3, 4332660), (4, 3249495), (5, 2599596), (6, 2166330), (9, 1444220), (10, 1299798), (12, 1083165), (15, 866532), (18, 722110), (20, 649899), (30, 433266), (36, 361055), (45, 288844), (60, 216633), (90, 144422), (180, 72211)]