78772540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{51151}}^1$

素因数の和:51178

約数の個数: 48

約数和(自身を含む): 206244864

約数和(自身を除く): 127472324

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 51151, 102302, 204604, 255755, 358057, 511510, 562661, 716114, 1023020, 1125322, 1432228, 1790285, 2250644, 2813305, 3580570, 3938627, 5626610, 7161140, 7877254, 11253220, 15754508, 19693135, 39386270, 78772540]

約数ペア:

[(1, 78772540), (2, 39386270), (4, 19693135), (5, 15754508), (7, 11253220), (10, 7877254), (11, 7161140), (14, 5626610), (20, 3938627), (22, 3580570), (28, 2813305), (35, 2250644), (44, 1790285), (55, 1432228), (70, 1125322), (77, 1023020), (110, 716114), (140, 562661), (154, 511510), (220, 358057), (308, 255755), (385, 204604), (770, 102302), (1540, 51151)]