20587440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{85781}}^1$

素因数の和:85797

約数の個数: 40

約数和(自身を含む): 63821808

約数和(自身を除く): 43234368

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 85781, 171562, 257343, 343124, 428905, 514686, 686248, 857810, 1029372, 1286715, 1372496, 1715620, 2058744, 2573430, 3431240, 4117488, 5146860, 6862480, 10293720, 20587440]

約数ペア:

[(1, 20587440), (2, 10293720), (3, 6862480), (4, 5146860), (5, 4117488), (6, 3431240), (8, 2573430), (10, 2058744), (12, 1715620), (15, 1372496), (16, 1286715), (20, 1029372), (24, 857810), (30, 686248), (40, 514686), (48, 428905), (60, 343124), (80, 257343), (120, 171562), (240, 85781)]