17681840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1$

素因数の和:378

約数の個数: 80

約数和(自身を含む): 45639936

約数和(自身を除く): 27958096

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 142, 176, 220, 283, 284, 355, 440, 566, 568, 710, 781, 880, 1132, 1136, 1415, 1420, 1562, 2264, 2830, 2840, 3113, 3124, 3905, 4528, 5660, 5680, 6226, 6248, 7810, 11320, 12452, 12496, 15565, 15620, 20093, 22640, 24904, 31130, 31240, 40186, 49808, 62260, 62480, 80372, 100465, 124520, 160744, 200930, 221023, 249040, 321488, 401860, 442046, 803720, 884092, 1105115, 1607440, 1768184, 2210230, 3536368, 4420460, 8840920, 17681840]

約数ペア:

[(1, 17681840), (2, 8840920), (4, 4420460), (5, 3536368), (8, 2210230), (10, 1768184), (11, 1607440), (16, 1105115), (20, 884092), (22, 803720), (40, 442046), (44, 401860), (55, 321488), (71, 249040), (80, 221023), (88, 200930), (110, 160744), (142, 124520), (176, 100465), (220, 80372), (283, 62480), (284, 62260), (355, 49808), (440, 40186), (566, 31240), (568, 31130), (710, 24904), (781, 22640), (880, 20093), (1132, 15620), (1136, 15565), (1415, 12496), (1420, 12452), (1562, 11320), (2264, 7810), (2830, 6248), (2840, 6226), (3113, 5680), (3124, 5660), (3905, 4528)]