280643585

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 395366400

約数和(自身を除く): 114722815

約数列:

[1, 5, 19, 23, 29, 43, 95, 103, 115, 145, 215, 437, 515, 551, 667, 817, 989, 1247, 1957, 2185, 2369, 2755, 2987, 3335, 4085, 4429, 4945, 6235, 9785, 11845, 12673, 14935, 18791, 22145, 23693, 28681, 45011, 56753, 63365, 68701, 84151, 93955, 101867, 118465, 128441, 143405, 225055, 283765, 343505, 420755, 509335, 544939, 642205, 1305319, 1935473, 2440379, 2724695, 2954143, 6526595, 9677365, 12201895, 14770715, 56128717, 280643585]

約数ペア:

[(1, 280643585), (5, 56128717), (19, 14770715), (23, 12201895), (29, 9677365), (43, 6526595), (95, 2954143), (103, 2724695), (115, 2440379), (145, 1935473), (215, 1305319), (437, 642205), (515, 544939), (551, 509335), (667, 420755), (817, 343505), (989, 283765), (1247, 225055), (1957, 143405), (2185, 128441), (2369, 118465), (2755, 101867), (2987, 93955), (3335, 84151), (4085, 68701), (4429, 63365), (4945, 56753), (6235, 45011), (9785, 28681), (11845, 23693), (12673, 22145), (14935, 18791)]