81315416

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{111697}}^1$

素因数の和:111723

約数の個数: 32

約数和(自身を含む): 187652640

約数和(自身を除く): 106337224

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 111697, 223394, 446788, 781879, 893576, 1452061, 1563758, 2904122, 3127516, 5808244, 6255032, 10164427, 11616488, 20328854, 40657708, 81315416]

約数ペア:

[(1, 81315416), (2, 40657708), (4, 20328854), (7, 11616488), (8, 10164427), (13, 6255032), (14, 5808244), (26, 3127516), (28, 2904122), (52, 1563758), (56, 1452061), (91, 893576), (104, 781879), (182, 446788), (364, 223394), (728, 111697)]