78617560

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{40111}}^1$

素因数の和:40136

約数の個数: 48

約数和(自身を含む): 205774560

約数和(自身を除く): 127157000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 40111, 80222, 160444, 200555, 280777, 320888, 401110, 561554, 802220, 1123108, 1403885, 1604440, 1965439, 2246216, 2807770, 3930878, 5615540, 7861756, 9827195, 11231080, 15723512, 19654390, 39308780, 78617560]

約数ペア:

[(1, 78617560), (2, 39308780), (4, 19654390), (5, 15723512), (7, 11231080), (8, 9827195), (10, 7861756), (14, 5615540), (20, 3930878), (28, 2807770), (35, 2246216), (40, 1965439), (49, 1604440), (56, 1403885), (70, 1123108), (98, 802220), (140, 561554), (196, 401110), (245, 320888), (280, 280777), (392, 200555), (490, 160444), (980, 80222), (1960, 40111)]