4971420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:475

約数の個数: 72

約数和(自身を含む): 15331680

約数和(自身を除く): 10360260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 389, 426, 639, 710, 778, 852, 1065, 1167, 1278, 1420, 1556, 1945, 2130, 2334, 2556, 3195, 3501, 3890, 4260, 4668, 5835, 6390, 7002, 7780, 11670, 12780, 14004, 17505, 23340, 27619, 35010, 55238, 70020, 82857, 110476, 138095, 165714, 248571, 276190, 331428, 414285, 497142, 552380, 828570, 994284, 1242855, 1657140, 2485710, 4971420]

約数ペア:

[(1, 4971420), (2, 2485710), (3, 1657140), (4, 1242855), (5, 994284), (6, 828570), (9, 552380), (10, 497142), (12, 414285), (15, 331428), (18, 276190), (20, 248571), (30, 165714), (36, 138095), (45, 110476), (60, 82857), (71, 70020), (90, 55238), (142, 35010), (180, 27619), (213, 23340), (284, 17505), (355, 14004), (389, 12780), (426, 11670), (639, 7780), (710, 7002), (778, 6390), (852, 5835), (1065, 4668), (1167, 4260), (1278, 3890), (1420, 3501), (1556, 3195), (1945, 2556), (2130, 2334)]