27978880

素因数分解:

$2^7\times 5^1\times {\mathrm{43717}}^1$

素因数の和:43736

約数の個数: 32

約数和(自身を含む): 66888540

約数和(自身を除く): 38909660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 43717, 87434, 174868, 218585, 349736, 437170, 699472, 874340, 1398944, 1748680, 2797888, 3497360, 5595776, 6994720, 13989440, 27978880]

約数ペア:

[(1, 27978880), (2, 13989440), (4, 6994720), (5, 5595776), (8, 3497360), (10, 2797888), (16, 1748680), (20, 1398944), (32, 874340), (40, 699472), (64, 437170), (80, 349736), (128, 218585), (160, 174868), (320, 87434), (640, 43717)]