19902510

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{24571}}^1$

素因数の和:24590

約数の個数: 40

約数和(自身を含む): 53517816

約数和(自身を除く): 33615306

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 24571, 49142, 73713, 122855, 147426, 221139, 245710, 368565, 442278, 663417, 737130, 1105695, 1326834, 1990251, 2211390, 3317085, 3980502, 6634170, 9951255, 19902510]

約数ペア:

[(1, 19902510), (2, 9951255), (3, 6634170), (5, 3980502), (6, 3317085), (9, 2211390), (10, 1990251), (15, 1326834), (18, 1105695), (27, 737130), (30, 663417), (45, 442278), (54, 368565), (81, 245710), (90, 221139), (135, 147426), (162, 122855), (270, 73713), (405, 49142), (810, 24571)]