19666160

素因数分解:

$2^4\times 5^1\times {\mathrm{293}}^1\times {\mathrm{839}}^1$

素因数の和:1145

約数の個数: 40

約数和(自身を含む): 45934560

約数和(自身を除く): 26268400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 293, 586, 839, 1172, 1465, 1678, 2344, 2930, 3356, 4195, 4688, 5860, 6712, 8390, 11720, 13424, 16780, 23440, 33560, 67120, 245827, 491654, 983308, 1229135, 1966616, 2458270, 3933232, 4916540, 9833080, 19666160]

約数ペア:

[(1, 19666160), (2, 9833080), (4, 4916540), (5, 3933232), (8, 2458270), (10, 1966616), (16, 1229135), (20, 983308), (40, 491654), (80, 245827), (293, 67120), (586, 33560), (839, 23440), (1172, 16780), (1465, 13424), (1678, 11720), (2344, 8390), (2930, 6712), (3356, 5860), (4195, 4688)]