20688047324

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{181}}^2\times {\mathrm{1187}}^1$

素因数の和:1579

約数の個数: 72

約数和(自身を含む): 43832638080

約数和(自身を除く): 23144590756

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 181, 266, 362, 532, 724, 1187, 1267, 2374, 2534, 3439, 4748, 5068, 6878, 8309, 13756, 16618, 22553, 24073, 32761, 33236, 45106, 48146, 65522, 90212, 96292, 131044, 157871, 214847, 229327, 315742, 429694, 458654, 622459, 631484, 859388, 917308, 1244918, 1503929, 2489836, 3007858, 4082093, 4357213, 6015716, 8164186, 8714426, 16328372, 17428852, 28574651, 38887307, 57149302, 77774614, 114298604, 155549228, 272211149, 544422298, 738858833, 1088844596, 1477717666, 2955435332, 5172011831, 10344023662, 20688047324]

約数ペア:

[(1, 20688047324), (2, 10344023662), (4, 5172011831), (7, 2955435332), (14, 1477717666), (19, 1088844596), (28, 738858833), (38, 544422298), (76, 272211149), (133, 155549228), (181, 114298604), (266, 77774614), (362, 57149302), (532, 38887307), (724, 28574651), (1187, 17428852), (1267, 16328372), (2374, 8714426), (2534, 8164186), (3439, 6015716), (4748, 4357213), (5068, 4082093), (6878, 3007858), (8309, 2489836), (13756, 1503929), (16618, 1244918), (22553, 917308), (24073, 859388), (32761, 631484), (33236, 622459), (45106, 458654), (48146, 429694), (65522, 315742), (90212, 229327), (96292, 214847), (131044, 157871)]