2778055

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:88

約数の個数: 48

約数和(自身を含む): 4432320

約数和(自身を除く): 1654265

約数列:

[1, 5, 7, 17, 23, 29, 35, 49, 85, 115, 119, 145, 161, 203, 245, 391, 493, 595, 667, 805, 833, 1015, 1127, 1421, 1955, 2465, 2737, 3335, 3451, 4165, 4669, 5635, 7105, 11339, 13685, 17255, 19159, 23345, 24157, 32683, 56695, 79373, 95795, 120785, 163415, 396865, 555611, 2778055]

約数ペア:

[(1, 2778055), (5, 555611), (7, 396865), (17, 163415), (23, 120785), (29, 95795), (35, 79373), (49, 56695), (85, 32683), (115, 24157), (119, 23345), (145, 19159), (161, 17255), (203, 13685), (245, 11339), (391, 7105), (493, 5635), (595, 4669), (667, 4165), (805, 3451), (833, 3335), (1015, 2737), (1127, 2465), (1421, 1955)]