189754480

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{15919}}^1$

素因数の和:16081

約数の個数: 40

約数和(自身を含む): 444168000

約数和(自身を除く): 254413520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 2384, 2980, 5960, 11920, 15919, 31838, 63676, 79595, 127352, 159190, 254704, 318380, 636760, 1273520, 2371931, 4743862, 9487724, 11859655, 18975448, 23719310, 37950896, 47438620, 94877240, 189754480]

約数ペア:

[(1, 189754480), (2, 94877240), (4, 47438620), (5, 37950896), (8, 23719310), (10, 18975448), (16, 11859655), (20, 9487724), (40, 4743862), (80, 2371931), (149, 1273520), (298, 636760), (596, 318380), (745, 254704), (1192, 159190), (1490, 127352), (2384, 79595), (2980, 63676), (5960, 31838), (11920, 15919)]