20133012720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{640363}}^1$

素因数の和:640510

約数の個数: 80

約数和(自身を含む): 62888867712

約数和(自身を除く): 42755854992

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 131, 240, 262, 393, 524, 655, 786, 1048, 1310, 1572, 1965, 2096, 2620, 3144, 3930, 5240, 6288, 7860, 10480, 15720, 31440, 640363, 1280726, 1921089, 2561452, 3201815, 3842178, 5122904, 6403630, 7684356, 9605445, 10245808, 12807260, 15368712, 19210890, 25614520, 30737424, 38421780, 51229040, 76843560, 83887553, 153687120, 167775106, 251662659, 335550212, 419437765, 503325318, 671100424, 838875530, 1006650636, 1258313295, 1342200848, 1677751060, 2013301272, 2516626590, 3355502120, 4026602544, 5033253180, 6711004240, 10066506360, 20133012720]

約数ペア:

[(1, 20133012720), (2, 10066506360), (3, 6711004240), (4, 5033253180), (5, 4026602544), (6, 3355502120), (8, 2516626590), (10, 2013301272), (12, 1677751060), (15, 1342200848), (16, 1258313295), (20, 1006650636), (24, 838875530), (30, 671100424), (40, 503325318), (48, 419437765), (60, 335550212), (80, 251662659), (120, 167775106), (131, 153687120), (240, 83887553), (262, 76843560), (393, 51229040), (524, 38421780), (655, 30737424), (786, 25614520), (1048, 19210890), (1310, 15368712), (1572, 12807260), (1965, 10245808), (2096, 9605445), (2620, 7684356), (3144, 6403630), (3930, 5122904), (5240, 3842178), (6288, 3201815), (7860, 2561452), (10480, 1921089), (15720, 1280726), (31440, 640363)]