87840290

素因数分解:

$2^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1\times {\mathrm{661}}^1$

素因数の和:902

約数の個数: 32

約数和(自身を含む): 161151984

約数和(自身を除く): 73311694

約数列:

[1, 2, 5, 10, 97, 137, 194, 274, 485, 661, 685, 970, 1322, 1370, 3305, 6610, 13289, 26578, 64117, 66445, 90557, 128234, 132890, 181114, 320585, 452785, 641170, 905570, 8784029, 17568058, 43920145, 87840290]

約数ペア:

[(1, 87840290), (2, 43920145), (5, 17568058), (10, 8784029), (97, 905570), (137, 641170), (194, 452785), (274, 320585), (485, 181114), (661, 132890), (685, 128234), (970, 90557), (1322, 66445), (1370, 64117), (3305, 26578), (6610, 13289)]