20286120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2381}}^1$

素因数の和:2466

約数の個数: 64

約数和(自身を含む): 61741440

約数和(自身を除く): 41455320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2381, 2840, 4260, 4762, 7143, 8520, 9524, 11905, 14286, 19048, 23810, 28572, 35715, 47620, 57144, 71430, 95240, 142860, 169051, 285720, 338102, 507153, 676204, 845255, 1014306, 1352408, 1690510, 2028612, 2535765, 3381020, 4057224, 5071530, 6762040, 10143060, 20286120]

約数ペア:

[(1, 20286120), (2, 10143060), (3, 6762040), (4, 5071530), (5, 4057224), (6, 3381020), (8, 2535765), (10, 2028612), (12, 1690510), (15, 1352408), (20, 1014306), (24, 845255), (30, 676204), (40, 507153), (60, 338102), (71, 285720), (120, 169051), (142, 142860), (213, 95240), (284, 71430), (355, 57144), (426, 47620), (568, 35715), (710, 28572), (852, 23810), (1065, 19048), (1420, 14286), (1704, 11905), (2130, 9524), (2381, 8520), (2840, 7143), (4260, 4762)]