8840920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1$

素因数の和:376

約数の個数: 64

約数和(自身を含む): 22083840

約数和(自身を除く): 13242920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 283, 284, 355, 440, 566, 568, 710, 781, 1132, 1415, 1420, 1562, 2264, 2830, 2840, 3113, 3124, 3905, 5660, 6226, 6248, 7810, 11320, 12452, 15565, 15620, 20093, 24904, 31130, 31240, 40186, 62260, 80372, 100465, 124520, 160744, 200930, 221023, 401860, 442046, 803720, 884092, 1105115, 1768184, 2210230, 4420460, 8840920]

約数ペア:

[(1, 8840920), (2, 4420460), (4, 2210230), (5, 1768184), (8, 1105115), (10, 884092), (11, 803720), (20, 442046), (22, 401860), (40, 221023), (44, 200930), (55, 160744), (71, 124520), (88, 100465), (110, 80372), (142, 62260), (220, 40186), (283, 31240), (284, 31130), (355, 24904), (440, 20093), (566, 15620), (568, 15565), (710, 12452), (781, 11320), (1132, 7810), (1415, 6248), (1420, 6226), (1562, 5660), (2264, 3905), (2830, 3124), (2840, 3113)]