81976834

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{317}}^1$

素因数の和:490

約数の個数: 32

約数和(自身を含む): 131636736

約数和(自身を除く): 49659902

約数列:

[1, 2, 31, 43, 62, 86, 97, 194, 317, 634, 1333, 2666, 3007, 4171, 6014, 8342, 9827, 13631, 19654, 27262, 30749, 61498, 129301, 258602, 422561, 845122, 953219, 1322207, 1906438, 2644414, 40988417, 81976834]

約数ペア:

[(1, 81976834), (2, 40988417), (31, 2644414), (43, 1906438), (62, 1322207), (86, 953219), (97, 845122), (194, 422561), (317, 258602), (634, 129301), (1333, 61498), (2666, 30749), (3007, 27262), (4171, 19654), (6014, 13631), (8342, 9827)]