210940840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{3449}}^1$

素因数の和:3610

約数の個数: 64

約数和(自身を含む): 521640000

約数和(自身を除く): 310699160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 139, 220, 278, 440, 556, 695, 1112, 1390, 1529, 2780, 3058, 3449, 5560, 6116, 6898, 7645, 12232, 13796, 15290, 17245, 27592, 30580, 34490, 37939, 61160, 68980, 75878, 137960, 151756, 189695, 303512, 379390, 479411, 758780, 958822, 1517560, 1917644, 2397055, 3835288, 4794110, 5273521, 9588220, 10547042, 19176440, 21094084, 26367605, 42188168, 52735210, 105470420, 210940840]

約数ペア:

[(1, 210940840), (2, 105470420), (4, 52735210), (5, 42188168), (8, 26367605), (10, 21094084), (11, 19176440), (20, 10547042), (22, 9588220), (40, 5273521), (44, 4794110), (55, 3835288), (88, 2397055), (110, 1917644), (139, 1517560), (220, 958822), (278, 758780), (440, 479411), (556, 379390), (695, 303512), (1112, 189695), (1390, 151756), (1529, 137960), (2780, 75878), (3058, 68980), (3449, 61160), (5560, 37939), (6116, 34490), (6898, 30580), (7645, 27592), (12232, 17245), (13796, 15290)]