78187649680

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19945829}}^1$

素因数の和:19945856

約数の個数: 60

約数和(自身を含む): 211465689660

約数和(自身を除く): 133278039980

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 19945829, 39891658, 79783316, 99729145, 139620803, 159566632, 199458290, 279241606, 319133264, 398916580, 558483212, 698104015, 797833160, 977345621, 1116966424, 1396208030, 1595666320, 1954691242, 2233932848, 2792416060, 3909382484, 4886728105, 5584832120, 7818764968, 9773456210, 11169664240, 15637529936, 19546912420, 39093824840, 78187649680]

約数ペア:

[(1, 78187649680), (2, 39093824840), (4, 19546912420), (5, 15637529936), (7, 11169664240), (8, 9773456210), (10, 7818764968), (14, 5584832120), (16, 4886728105), (20, 3909382484), (28, 2792416060), (35, 2233932848), (40, 1954691242), (49, 1595666320), (56, 1396208030), (70, 1116966424), (80, 977345621), (98, 797833160), (112, 698104015), (140, 558483212), (196, 398916580), (245, 319133264), (280, 279241606), (392, 199458290), (490, 159566632), (560, 139620803), (784, 99729145), (980, 79783316), (1960, 39891658), (3920, 19945829)]