20427390

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{25219}}^1$

素因数の和:25238

約数の個数: 40

約数和(自身を含む): 54929160

約数和(自身を除く): 34501770

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 25219, 50438, 75657, 126095, 151314, 226971, 252190, 378285, 453942, 680913, 756570, 1134855, 1361826, 2042739, 2269710, 3404565, 4085478, 6809130, 10213695, 20427390]

約数ペア:

[(1, 20427390), (2, 10213695), (3, 6809130), (5, 4085478), (6, 3404565), (9, 2269710), (10, 2042739), (15, 1361826), (18, 1134855), (27, 756570), (30, 680913), (45, 453942), (54, 378285), (81, 252190), (90, 226971), (135, 151314), (162, 126095), (270, 75657), (405, 50438), (810, 25219)]