81387418

素因数分解:

$2^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:562

約数の個数: 32

約数和(自身を含む): 141926400

約数和(自身を除く): 60538982

約数列:

[1, 2, 7, 14, 131, 199, 223, 262, 398, 446, 917, 1393, 1561, 1834, 2786, 3122, 26069, 29213, 44377, 52138, 58426, 88754, 182483, 204491, 310639, 364966, 408982, 621278, 5813387, 11626774, 40693709, 81387418]

約数ペア:

[(1, 81387418), (2, 40693709), (7, 11626774), (14, 5813387), (131, 621278), (199, 408982), (223, 364966), (262, 310639), (398, 204491), (446, 182483), (917, 88754), (1393, 58426), (1561, 52138), (1834, 44377), (2786, 29213), (3122, 26069)]