681796780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{18803}}^1$

素因数の和:18863

約数の個数: 72

約数和(自身を含む): 1710637488

約数和(自身を除く): 1028840708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 70, 74, 98, 140, 148, 185, 196, 245, 259, 370, 490, 518, 740, 980, 1036, 1295, 1813, 2590, 3626, 5180, 7252, 9065, 18130, 18803, 36260, 37606, 75212, 94015, 131621, 188030, 263242, 376060, 526484, 658105, 695711, 921347, 1316210, 1391422, 1842694, 2632420, 2782844, 3478555, 3685388, 4606735, 4869977, 6957110, 9213470, 9739954, 13914220, 18426940, 19479908, 24349885, 34089839, 48699770, 68179678, 97399540, 136359356, 170449195, 340898390, 681796780]

約数ペア:

[(1, 681796780), (2, 340898390), (4, 170449195), (5, 136359356), (7, 97399540), (10, 68179678), (14, 48699770), (20, 34089839), (28, 24349885), (35, 19479908), (37, 18426940), (49, 13914220), (70, 9739954), (74, 9213470), (98, 6957110), (140, 4869977), (148, 4606735), (185, 3685388), (196, 3478555), (245, 2782844), (259, 2632420), (370, 1842694), (490, 1391422), (518, 1316210), (740, 921347), (980, 695711), (1036, 658105), (1295, 526484), (1813, 376060), (2590, 263242), (3626, 188030), (5180, 131621), (7252, 94015), (9065, 75212), (18130, 37606), (18803, 36260)]