778877540

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{113539}}^1$

素因数の和:113569

約数の個数: 48

約数和(自身を含む): 1907472000

約数和(自身を除く): 1128594460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 113539, 227078, 454156, 567695, 794773, 1135390, 1589546, 2270780, 3179092, 3973865, 5563411, 7947730, 11126822, 15895460, 22253644, 27817055, 38943877, 55634110, 77887754, 111268220, 155775508, 194719385, 389438770, 778877540]

約数ペア:

[(1, 778877540), (2, 389438770), (4, 194719385), (5, 155775508), (7, 111268220), (10, 77887754), (14, 55634110), (20, 38943877), (28, 27817055), (35, 22253644), (49, 15895460), (70, 11126822), (98, 7947730), (140, 5563411), (196, 3973865), (245, 3179092), (343, 2270780), (490, 1589546), (686, 1135390), (980, 794773), (1372, 567695), (1715, 454156), (3430, 227078), (6860, 113539)]