1285289440

素因数分解:

$2^5\times 5^1\times {\mathrm{449}}^1\times {\mathrm{17891}}^1$

素因数の和:18355

約数の個数: 48

約数和(自身を含む): 3043429200

約数和(自身を除く): 1758139760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 449, 898, 1796, 2245, 3592, 4490, 7184, 8980, 14368, 17891, 17960, 35782, 35920, 71564, 71840, 89455, 143128, 178910, 286256, 357820, 572512, 715640, 1431280, 2862560, 8033059, 16066118, 32132236, 40165295, 64264472, 80330590, 128528944, 160661180, 257057888, 321322360, 642644720, 1285289440]

約数ペア:

[(1, 1285289440), (2, 642644720), (4, 321322360), (5, 257057888), (8, 160661180), (10, 128528944), (16, 80330590), (20, 64264472), (32, 40165295), (40, 32132236), (80, 16066118), (160, 8033059), (449, 2862560), (898, 1431280), (1796, 715640), (2245, 572512), (3592, 357820), (4490, 286256), (7184, 178910), (8980, 143128), (14368, 89455), (17891, 71840), (17960, 71564), (35782, 35920)]