145905280

素因数分解:

$2^7\times 5^1\times {\mathrm{227977}}^1$

素因数の和:227996

約数の個数: 32

約数和(自身を含む): 348806340

約数和(自身を除く): 202901060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 227977, 455954, 911908, 1139885, 1823816, 2279770, 3647632, 4559540, 7295264, 9119080, 14590528, 18238160, 29181056, 36476320, 72952640, 145905280]

約数ペア:

[(1, 145905280), (2, 72952640), (4, 36476320), (5, 29181056), (8, 18238160), (10, 14590528), (16, 9119080), (20, 7295264), (32, 4559540), (40, 3647632), (64, 2279770), (80, 1823816), (128, 1139885), (160, 911908), (320, 455954), (640, 227977)]