99747640

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{28019}}^1$

素因数の和:28119

約数の個数: 32

約数和(自身を含む): 226962000

約数和(自身を除く): 127214360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 28019, 56038, 112076, 140095, 224152, 280190, 560380, 1120760, 2493691, 4987382, 9974764, 12468455, 19949528, 24936910, 49873820, 99747640]

約数ペア:

[(1, 99747640), (2, 49873820), (4, 24936910), (5, 19949528), (8, 12468455), (10, 9974764), (20, 4987382), (40, 2493691), (89, 1120760), (178, 560380), (356, 280190), (445, 224152), (712, 140095), (890, 112076), (1780, 56038), (3560, 28019)]