1259097920

素因数分解:

$2^6\times 5^1\times {\mathrm{197}}^1\times {\mathrm{19973}}^1$

素因数の和:20187

約数の個数: 56

約数和(自身を含む): 3013597224

約数和(自身を除く): 1754499304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 197, 320, 394, 788, 985, 1576, 1970, 3152, 3940, 6304, 7880, 12608, 15760, 19973, 31520, 39946, 63040, 79892, 99865, 159784, 199730, 319568, 399460, 639136, 798920, 1278272, 1597840, 3195680, 3934681, 6391360, 7869362, 15738724, 19673405, 31477448, 39346810, 62954896, 78693620, 125909792, 157387240, 251819584, 314774480, 629548960, 1259097920]

約数ペア:

[(1, 1259097920), (2, 629548960), (4, 314774480), (5, 251819584), (8, 157387240), (10, 125909792), (16, 78693620), (20, 62954896), (32, 39346810), (40, 31477448), (64, 19673405), (80, 15738724), (160, 7869362), (197, 6391360), (320, 3934681), (394, 3195680), (788, 1597840), (985, 1278272), (1576, 798920), (1970, 639136), (3152, 399460), (3940, 319568), (6304, 199730), (7880, 159784), (12608, 99865), (15760, 79892), (19973, 63040), (31520, 39946)]