199819100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{547}}^1$

素因数の和:855

約数の個数: 72

約数和(自身を含む): 469480368

約数和(自身を除く): 269661268

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 281, 325, 547, 562, 650, 1094, 1124, 1300, 1405, 2188, 2735, 2810, 3653, 5470, 5620, 7025, 7111, 7306, 10940, 13675, 14050, 14222, 14612, 18265, 27350, 28100, 28444, 35555, 36530, 54700, 71110, 73060, 91325, 142220, 153707, 177775, 182650, 307414, 355550, 365300, 614828, 711100, 768535, 1537070, 1998191, 3074140, 3842675, 3996382, 7685350, 7992764, 9990955, 15370700, 19981910, 39963820, 49954775, 99909550, 199819100]

約数ペア:

[(1, 199819100), (2, 99909550), (4, 49954775), (5, 39963820), (10, 19981910), (13, 15370700), (20, 9990955), (25, 7992764), (26, 7685350), (50, 3996382), (52, 3842675), (65, 3074140), (100, 1998191), (130, 1537070), (260, 768535), (281, 711100), (325, 614828), (547, 365300), (562, 355550), (650, 307414), (1094, 182650), (1124, 177775), (1300, 153707), (1405, 142220), (2188, 91325), (2735, 73060), (2810, 71110), (3653, 54700), (5470, 36530), (5620, 35555), (7025, 28444), (7111, 28100), (7306, 27350), (10940, 18265), (13675, 14612), (14050, 14222)]