81970300

素因数分解:

$2^2\times 5^2\times {\mathrm{839}}^1\times {\mathrm{977}}^1$

素因数の和:1830

約数の個数: 36

約数和(自身を含む): 178269840

約数和(自身を除く): 96299540

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 839, 977, 1678, 1954, 3356, 3908, 4195, 4885, 8390, 9770, 16780, 19540, 20975, 24425, 41950, 48850, 83900, 97700, 819703, 1639406, 3278812, 4098515, 8197030, 16394060, 20492575, 40985150, 81970300]

約数ペア:

[(1, 81970300), (2, 40985150), (4, 20492575), (5, 16394060), (10, 8197030), (20, 4098515), (25, 3278812), (50, 1639406), (100, 819703), (839, 97700), (977, 83900), (1678, 48850), (1954, 41950), (3356, 24425), (3908, 20975), (4195, 19540), (4885, 16780), (8390, 9770)]