81144245

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{349}}^1$

素因数の和:454

約数の個数: 48

約数和(自身を含む): 124009200

約数和(自身を除く): 42864955

約数列:

[1, 5, 7, 13, 35, 49, 65, 73, 91, 245, 349, 365, 455, 511, 637, 949, 1745, 2443, 2555, 3185, 3577, 4537, 4745, 6643, 12215, 17101, 17885, 22685, 25477, 31759, 33215, 46501, 85505, 127385, 158795, 178339, 222313, 232505, 331201, 891695, 1111565, 1248373, 1656005, 2318407, 6241865, 11592035, 16228849, 81144245]

約数ペア:

[(1, 81144245), (5, 16228849), (7, 11592035), (13, 6241865), (35, 2318407), (49, 1656005), (65, 1248373), (73, 1111565), (91, 891695), (245, 331201), (349, 232505), (365, 222313), (455, 178339), (511, 158795), (637, 127385), (949, 85505), (1745, 46501), (2443, 33215), (2555, 31759), (3185, 25477), (3577, 22685), (4537, 17885), (4745, 17101), (6643, 12215)]