81587216

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{15787}}^1$

素因数の和:15831

約数の個数: 40

約数和(自身を含む): 176194080

約数和(自身を除く): 94606864

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 272, 304, 323, 646, 1292, 2584, 5168, 15787, 31574, 63148, 126296, 252592, 268379, 299953, 536758, 599906, 1073516, 1199812, 2147032, 2399624, 4294064, 4799248, 5099201, 10198402, 20396804, 40793608, 81587216]

約数ペア:

[(1, 81587216), (2, 40793608), (4, 20396804), (8, 10198402), (16, 5099201), (17, 4799248), (19, 4294064), (34, 2399624), (38, 2147032), (68, 1199812), (76, 1073516), (136, 599906), (152, 536758), (272, 299953), (304, 268379), (323, 252592), (646, 126296), (1292, 63148), (2584, 31574), (5168, 15787)]