128520100

素因数分解:

$2^2\times 5^2\times {\mathrm{211}}^1\times {\mathrm{6091}}^1$

素因数の和:6316

約数の個数: 36

約数和(自身を含む): 280256368

約数和(自身を除く): 151736268

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 211, 422, 844, 1055, 2110, 4220, 5275, 6091, 10550, 12182, 21100, 24364, 30455, 60910, 121820, 152275, 304550, 609100, 1285201, 2570402, 5140804, 6426005, 12852010, 25704020, 32130025, 64260050, 128520100]

約数ペア:

[(1, 128520100), (2, 64260050), (4, 32130025), (5, 25704020), (10, 12852010), (20, 6426005), (25, 5140804), (50, 2570402), (100, 1285201), (211, 609100), (422, 304550), (844, 152275), (1055, 121820), (2110, 60910), (4220, 30455), (5275, 24364), (6091, 21100), (10550, 12182)]