81956812

素因数分解:

$2^2\times 7^2\times {\mathrm{67}}^1\times {\mathrm{79}}^2$

素因数の和:243

約数の個数: 54

約数和(自身を含む): 171501372

約数和(自身を除く): 89544560

約数列:

[1, 2, 4, 7, 14, 28, 49, 67, 79, 98, 134, 158, 196, 268, 316, 469, 553, 938, 1106, 1876, 2212, 3283, 3871, 5293, 6241, 6566, 7742, 10586, 12482, 13132, 15484, 21172, 24964, 37051, 43687, 74102, 87374, 148204, 174748, 259357, 305809, 418147, 518714, 611618, 836294, 1037428, 1223236, 1672588, 2927029, 5854058, 11708116, 20489203, 40978406, 81956812]

約数ペア:

[(1, 81956812), (2, 40978406), (4, 20489203), (7, 11708116), (14, 5854058), (28, 2927029), (49, 1672588), (67, 1223236), (79, 1037428), (98, 836294), (134, 611618), (158, 518714), (196, 418147), (268, 305809), (316, 259357), (469, 174748), (553, 148204), (938, 87374), (1106, 74102), (1876, 43687), (2212, 37051), (3283, 24964), (3871, 21172), (5293, 15484), (6241, 13132), (6566, 12482), (7742, 10586)]