27459320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{349}}^1$

素因数の和:648

約数の個数: 64

約数和(自身を含む): 71064000

約数和(自身を除く): 43604680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 281, 349, 562, 698, 1124, 1396, 1405, 1745, 1967, 2248, 2443, 2792, 2810, 3490, 3934, 4886, 5620, 6980, 7868, 9772, 9835, 11240, 12215, 13960, 15736, 19544, 19670, 24430, 39340, 48860, 78680, 97720, 98069, 196138, 392276, 490345, 686483, 784552, 980690, 1372966, 1961380, 2745932, 3432415, 3922760, 5491864, 6864830, 13729660, 27459320]

約数ペア:

[(1, 27459320), (2, 13729660), (4, 6864830), (5, 5491864), (7, 3922760), (8, 3432415), (10, 2745932), (14, 1961380), (20, 1372966), (28, 980690), (35, 784552), (40, 686483), (56, 490345), (70, 392276), (140, 196138), (280, 98069), (281, 97720), (349, 78680), (562, 48860), (698, 39340), (1124, 24430), (1396, 19670), (1405, 19544), (1745, 15736), (1967, 13960), (2248, 12215), (2443, 11240), (2792, 9835), (2810, 9772), (3490, 7868), (3934, 6980), (4886, 5620)]