156913280

素因数分解:

$2^7\times 5^1\times {\mathrm{245177}}^1$

素因数の和:245196

約数の個数: 32

約数和(自身を含む): 375122340

約数和(自身を除く): 218209060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 245177, 490354, 980708, 1225885, 1961416, 2451770, 3922832, 4903540, 7845664, 9807080, 15691328, 19614160, 31382656, 39228320, 78456640, 156913280]

約数ペア:

[(1, 156913280), (2, 78456640), (4, 39228320), (5, 31382656), (8, 19614160), (10, 15691328), (16, 9807080), (20, 7845664), (32, 4903540), (40, 3922832), (64, 2451770), (80, 1961416), (128, 1225885), (160, 980708), (320, 490354), (640, 245177)]