203478280

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{32401}}^1$

素因数の和:32569

約数の個数: 32

約数和(自身を含む): 460756440

約数和(自身を除く): 257278160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 32401, 64802, 129604, 162005, 259208, 324010, 648020, 1296040, 5086957, 10173914, 20347828, 25434785, 40695656, 50869570, 101739140, 203478280]

約数ペア:

[(1, 203478280), (2, 101739140), (4, 50869570), (5, 40695656), (8, 25434785), (10, 20347828), (20, 10173914), (40, 5086957), (157, 1296040), (314, 648020), (628, 324010), (785, 259208), (1256, 162005), (1570, 129604), (3140, 64802), (6280, 32401)]