64145677648

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1\times {\mathrm{20261}}^1$

素因数の和:20804

約数の個数: 80

約数和(自身を含む): 138448138752

約数和(自身を除く): 74302461104

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 491, 496, 806, 982, 1612, 1964, 3224, 3928, 6383, 6448, 7856, 12766, 15221, 20261, 25532, 30442, 40522, 51064, 60884, 81044, 102128, 121768, 162088, 197873, 243536, 263393, 324176, 395746, 526786, 628091, 791492, 1053572, 1256182, 1582984, 2107144, 2512364, 3165968, 4214288, 5024728, 8165183, 9948151, 10049456, 16330366, 19896302, 32660732, 39792604, 65321464, 79585208, 129325963, 130642928, 159170416, 258651926, 308392681, 517303852, 616785362, 1034607704, 1233570724, 2069215408, 2467141448, 4009104853, 4934282896, 8018209706, 16036419412, 32072838824, 64145677648]

約数ペア:

[(1, 64145677648), (2, 32072838824), (4, 16036419412), (8, 8018209706), (13, 4934282896), (16, 4009104853), (26, 2467141448), (31, 2069215408), (52, 1233570724), (62, 1034607704), (104, 616785362), (124, 517303852), (208, 308392681), (248, 258651926), (403, 159170416), (491, 130642928), (496, 129325963), (806, 79585208), (982, 65321464), (1612, 39792604), (1964, 32660732), (3224, 19896302), (3928, 16330366), (6383, 10049456), (6448, 9948151), (7856, 8165183), (12766, 5024728), (15221, 4214288), (20261, 3165968), (25532, 2512364), (30442, 2107144), (40522, 1582984), (51064, 1256182), (60884, 1053572), (81044, 791492), (102128, 628091), (121768, 526786), (162088, 395746), (197873, 324176), (243536, 263393)]