18192880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{11969}}^1$

素因数の和:12001

約数の個数: 40

約数和(自身を含む): 44528400

約数和(自身を除く): 26335520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 11969, 23938, 47876, 59845, 95752, 119690, 191504, 227411, 239380, 454822, 478760, 909644, 957520, 1137055, 1819288, 2274110, 3638576, 4548220, 9096440, 18192880]

約数ペア:

[(1, 18192880), (2, 9096440), (4, 4548220), (5, 3638576), (8, 2274110), (10, 1819288), (16, 1137055), (19, 957520), (20, 909644), (38, 478760), (40, 454822), (76, 239380), (80, 227411), (95, 191504), (152, 119690), (190, 95752), (304, 59845), (380, 47876), (760, 23938), (1520, 11969)]