81651664

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{6551}}^1$

素因数の和:6619

約数の個数: 40

約数和(自身を含む): 170614080

約数和(自身を除く): 88962416

約数列:

[1, 2, 4, 8, 16, 19, 38, 41, 76, 82, 152, 164, 304, 328, 656, 779, 1558, 3116, 6232, 6551, 12464, 13102, 26204, 52408, 104816, 124469, 248938, 268591, 497876, 537182, 995752, 1074364, 1991504, 2148728, 4297456, 5103229, 10206458, 20412916, 40825832, 81651664]

約数ペア:

[(1, 81651664), (2, 40825832), (4, 20412916), (8, 10206458), (16, 5103229), (19, 4297456), (38, 2148728), (41, 1991504), (76, 1074364), (82, 995752), (152, 537182), (164, 497876), (304, 268591), (328, 248938), (656, 124469), (779, 104816), (1558, 52408), (3116, 26204), (6232, 13102), (6551, 12464)]