198008980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:353

約数の個数: 96

約数和(自身を含む): 465696000

約数和(自身を除く): 267687020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 89, 130, 172, 178, 199, 215, 260, 356, 398, 430, 445, 559, 796, 860, 890, 995, 1118, 1157, 1780, 1990, 2236, 2314, 2587, 2795, 3827, 3980, 4628, 5174, 5590, 5785, 7654, 8557, 10348, 11180, 11570, 12935, 15308, 17114, 17711, 19135, 23140, 25870, 34228, 35422, 38270, 42785, 49751, 51740, 70844, 76540, 85570, 88555, 99502, 111241, 171140, 177110, 199004, 222482, 230243, 248755, 354220, 444964, 460486, 497510, 556205, 761573, 920972, 995020, 1112410, 1151215, 1523146, 2224820, 2302430, 3046292, 3807865, 4604860, 7615730, 9900449, 15231460, 19800898, 39601796, 49502245, 99004490, 198008980]

約数ペア:

[(1, 198008980), (2, 99004490), (4, 49502245), (5, 39601796), (10, 19800898), (13, 15231460), (20, 9900449), (26, 7615730), (43, 4604860), (52, 3807865), (65, 3046292), (86, 2302430), (89, 2224820), (130, 1523146), (172, 1151215), (178, 1112410), (199, 995020), (215, 920972), (260, 761573), (356, 556205), (398, 497510), (430, 460486), (445, 444964), (559, 354220), (796, 248755), (860, 230243), (890, 222482), (995, 199004), (1118, 177110), (1157, 171140), (1780, 111241), (1990, 99502), (2236, 88555), (2314, 85570), (2587, 76540), (2795, 70844), (3827, 51740), (3980, 49751), (4628, 42785), (5174, 38270), (5590, 35422), (5785, 34228), (7654, 25870), (8557, 23140), (10348, 19135), (11180, 17711), (11570, 17114), (12935, 15308)]