778880

素因数分解:

$2^7\times 5^1\times {\mathrm{1217}}^1$

素因数の和:1236

約数の個数: 32

約数和(自身を含む): 1863540

約数和(自身を除く): 1084660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1217, 2434, 4868, 6085, 9736, 12170, 19472, 24340, 38944, 48680, 77888, 97360, 155776, 194720, 389440, 778880]

約数ペア:

[(1, 778880), (2, 389440), (4, 194720), (5, 155776), (8, 97360), (10, 77888), (16, 48680), (20, 38944), (32, 24340), (40, 19472), (64, 12170), (80, 9736), (128, 6085), (160, 4868), (320, 2434), (640, 1217)]