89905280

素因数分解:

$2^7\times 5^1\times {\mathrm{140477}}^1$

素因数の和:140496

約数の個数: 32

約数和(自身を含む): 214931340

約数和(自身を除く): 125026060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 140477, 280954, 561908, 702385, 1123816, 1404770, 2247632, 2809540, 4495264, 5619080, 8990528, 11238160, 17981056, 22476320, 44952640, 89905280]

約数ペア:

[(1, 89905280), (2, 44952640), (4, 22476320), (5, 17981056), (8, 11238160), (10, 8990528), (16, 5619080), (20, 4495264), (32, 2809540), (40, 2247632), (64, 1404770), (80, 1123816), (128, 702385), (160, 561908), (320, 280954), (640, 140477)]