81777458

素因数分解:

$2^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1$

素因数の和:554

約数の個数: 32

約数和(自身を含む): 142560000

約数和(自身を除く): 60782542

約数列:

[1, 2, 7, 14, 149, 197, 199, 298, 394, 398, 1043, 1379, 1393, 2086, 2758, 2786, 29353, 29651, 39203, 58706, 59302, 78406, 205471, 207557, 274421, 410942, 415114, 548842, 5841247, 11682494, 40888729, 81777458]

約数ペア:

[(1, 81777458), (2, 40888729), (7, 11682494), (14, 5841247), (149, 548842), (197, 415114), (199, 410942), (298, 274421), (394, 207557), (398, 205471), (1043, 78406), (1379, 59302), (1393, 58706), (2086, 39203), (2758, 29651), (2786, 29353)]