1285498980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{310507}}^1$

素因数の和:310545

約数の個数: 72

約数和(自身を含む): 4068896832

約数和(自身を除く): 2783397852

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 310507, 621014, 931521, 1242028, 1552535, 1863042, 2794563, 3105070, 3726084, 4657605, 5589126, 6210140, 7141661, 9315210, 11178252, 13972815, 14283322, 18630420, 21424983, 27945630, 28566644, 35708305, 42849966, 55891260, 64274949, 71416610, 85699932, 107124915, 128549898, 142833220, 214249830, 257099796, 321374745, 428499660, 642749490, 1285498980]

約数ペア:

[(1, 1285498980), (2, 642749490), (3, 428499660), (4, 321374745), (5, 257099796), (6, 214249830), (9, 142833220), (10, 128549898), (12, 107124915), (15, 85699932), (18, 71416610), (20, 64274949), (23, 55891260), (30, 42849966), (36, 35708305), (45, 28566644), (46, 27945630), (60, 21424983), (69, 18630420), (90, 14283322), (92, 13972815), (115, 11178252), (138, 9315210), (180, 7141661), (207, 6210140), (230, 5589126), (276, 4657605), (345, 3726084), (414, 3105070), (460, 2794563), (690, 1863042), (828, 1552535), (1035, 1242028), (1380, 931521), (2070, 621014), (4140, 310507)]