257957520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{2063}}^1$

素因数の和:2600

約数の個数: 80

約数和(自身を含む): 801591552

約数和(自身を除く): 543634032

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 521, 1042, 1563, 2063, 2084, 2605, 3126, 4126, 4168, 5210, 6189, 6252, 7815, 8252, 8336, 10315, 10420, 12378, 12504, 15630, 16504, 20630, 20840, 24756, 25008, 30945, 31260, 33008, 41260, 41680, 49512, 61890, 62520, 82520, 99024, 123780, 125040, 165040, 247560, 495120, 1074823, 2149646, 3224469, 4299292, 5374115, 6448938, 8598584, 10748230, 12897876, 16122345, 17197168, 21496460, 25795752, 32244690, 42992920, 51591504, 64489380, 85985840, 128978760, 257957520]

約数ペア:

[(1, 257957520), (2, 128978760), (3, 85985840), (4, 64489380), (5, 51591504), (6, 42992920), (8, 32244690), (10, 25795752), (12, 21496460), (15, 17197168), (16, 16122345), (20, 12897876), (24, 10748230), (30, 8598584), (40, 6448938), (48, 5374115), (60, 4299292), (80, 3224469), (120, 2149646), (240, 1074823), (521, 495120), (1042, 247560), (1563, 165040), (2063, 125040), (2084, 123780), (2605, 99024), (3126, 82520), (4126, 62520), (4168, 61890), (5210, 49512), (6189, 41680), (6252, 41260), (7815, 33008), (8252, 31260), (8336, 30945), (10315, 25008), (10420, 24756), (12378, 20840), (12504, 20630), (15630, 16504)]