164462440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{132631}}^1$

素因数の和:132673

約数の個数: 32

約数和(自身を含む): 381980160

約数和(自身を除く): 217517720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 132631, 265262, 530524, 663155, 1061048, 1326310, 2652620, 4111561, 5305240, 8223122, 16446244, 20557805, 32892488, 41115610, 82231220, 164462440]

約数ペア:

[(1, 164462440), (2, 82231220), (4, 41115610), (5, 32892488), (8, 20557805), (10, 16446244), (20, 8223122), (31, 5305240), (40, 4111561), (62, 2652620), (124, 1326310), (155, 1061048), (248, 663155), (310, 530524), (620, 265262), (1240, 132631)]