81706156

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{383}}^1\times {\mathrm{401}}^1$

素因数の和:814

約数の個数: 48

約数和(自身を含む): 172892160

約数和(自身を除く): 91186004

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 383, 401, 532, 766, 802, 1532, 1604, 2681, 2807, 5362, 5614, 7277, 7619, 10724, 11228, 14554, 15238, 29108, 30476, 50939, 53333, 101878, 106666, 153583, 203756, 213332, 307166, 614332, 1075081, 2150162, 2918077, 4300324, 5836154, 11672308, 20426539, 40853078, 81706156]

約数ペア:

[(1, 81706156), (2, 40853078), (4, 20426539), (7, 11672308), (14, 5836154), (19, 4300324), (28, 2918077), (38, 2150162), (76, 1075081), (133, 614332), (266, 307166), (383, 213332), (401, 203756), (532, 153583), (766, 106666), (802, 101878), (1532, 53333), (1604, 50939), (2681, 30476), (2807, 29108), (5362, 15238), (5614, 14554), (7277, 11228), (7619, 10724)]