138720350

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^2\times {\mathrm{2887}}^1$

素因数の和:2961

約数の個数: 36

約数和(自身を含む): 266703912

約数和(自身を除く): 127983562

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 775, 961, 1550, 1922, 2887, 4805, 5774, 9610, 14435, 24025, 28870, 48050, 72175, 89497, 144350, 178994, 447485, 894970, 2237425, 2774407, 4474850, 5548814, 13872035, 27744070, 69360175, 138720350]

約数ペア:

[(1, 138720350), (2, 69360175), (5, 27744070), (10, 13872035), (25, 5548814), (31, 4474850), (50, 2774407), (62, 2237425), (155, 894970), (310, 447485), (775, 178994), (961, 144350), (1550, 89497), (1922, 72175), (2887, 48050), (4805, 28870), (5774, 24025), (9610, 14435)]