77649280

素因数分解:

$2^7\times 5^1\times {\mathrm{121327}}^1$

素因数の和:121346

約数の個数: 32

約数和(自身を含む): 185631840

約数和(自身を除く): 107982560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 121327, 242654, 485308, 606635, 970616, 1213270, 1941232, 2426540, 3882464, 4853080, 7764928, 9706160, 15529856, 19412320, 38824640, 77649280]

約数ペア:

[(1, 77649280), (2, 38824640), (4, 19412320), (5, 15529856), (8, 9706160), (10, 7764928), (16, 4853080), (20, 3882464), (32, 2426540), (40, 1941232), (64, 1213270), (80, 970616), (128, 606635), (160, 485308), (320, 242654), (640, 121327)]