81995784

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{262807}}^1$

素因数の和:262829

約数の個数: 32

約数和(自身を含む): 220758720

約数和(自身を除く): 138762936

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 262807, 525614, 788421, 1051228, 1576842, 2102456, 3153684, 3416491, 6307368, 6832982, 10249473, 13665964, 20498946, 27331928, 40997892, 81995784]

約数ペア:

[(1, 81995784), (2, 40997892), (3, 27331928), (4, 20498946), (6, 13665964), (8, 10249473), (12, 6832982), (13, 6307368), (24, 3416491), (26, 3153684), (39, 2102456), (52, 1576842), (78, 1051228), (104, 788421), (156, 525614), (312, 262807)]