85219280

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{11969}}^1$

素因数の和:12071

約数の個数: 40

約数和(自身を含む): 200377800

約数和(自身を除く): 115158520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 11969, 23938, 47876, 59845, 95752, 119690, 191504, 239380, 478760, 957520, 1065241, 2130482, 4260964, 5326205, 8521928, 10652410, 17043856, 21304820, 42609640, 85219280]

約数ペア:

[(1, 85219280), (2, 42609640), (4, 21304820), (5, 17043856), (8, 10652410), (10, 8521928), (16, 5326205), (20, 4260964), (40, 2130482), (80, 1065241), (89, 957520), (178, 478760), (356, 239380), (445, 191504), (712, 119690), (890, 95752), (1424, 59845), (1780, 47876), (3560, 23938), (7120, 11969)]