278340595

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1$

素因数の和:340

約数の個数: 64

約数和(自身を含む): 406425600

約数和(自身を除く): 128085005

約数列:

[1, 5, 13, 19, 23, 41, 65, 95, 115, 205, 239, 247, 299, 437, 533, 779, 943, 1195, 1235, 1495, 2185, 2665, 3107, 3895, 4541, 4715, 5497, 5681, 9799, 10127, 12259, 15535, 17917, 22705, 27485, 28405, 48995, 50635, 59033, 61295, 71461, 89585, 104443, 127387, 186181, 225377, 232921, 295165, 357305, 522215, 636935, 930905, 1126885, 1164605, 1357759, 2420353, 2929901, 4282163, 6788795, 12101765, 14649505, 21410815, 55668119, 278340595]

約数ペア:

[(1, 278340595), (5, 55668119), (13, 21410815), (19, 14649505), (23, 12101765), (41, 6788795), (65, 4282163), (95, 2929901), (115, 2420353), (205, 1357759), (239, 1164605), (247, 1126885), (299, 930905), (437, 636935), (533, 522215), (779, 357305), (943, 295165), (1195, 232921), (1235, 225377), (1495, 186181), (2185, 127387), (2665, 104443), (3107, 89585), (3895, 71461), (4541, 61295), (4715, 59033), (5497, 50635), (5681, 48995), (9799, 28405), (10127, 27485), (12259, 22705), (15535, 17917)]