77778428

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1361}}^1$

素因数の和:1542

約数の個数: 48

約数和(自身を含む): 168713664

約数和(自身を除く): 90935236

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 157, 182, 314, 364, 628, 1099, 1361, 2041, 2198, 2722, 4082, 4396, 5444, 8164, 9527, 14287, 17693, 19054, 28574, 35386, 38108, 57148, 70772, 123851, 213677, 247702, 427354, 495404, 854708, 1495739, 2777801, 2991478, 5555602, 5982956, 11111204, 19444607, 38889214, 77778428]

約数ペア:

[(1, 77778428), (2, 38889214), (4, 19444607), (7, 11111204), (13, 5982956), (14, 5555602), (26, 2991478), (28, 2777801), (52, 1495739), (91, 854708), (157, 495404), (182, 427354), (314, 247702), (364, 213677), (628, 123851), (1099, 70772), (1361, 57148), (2041, 38108), (2198, 35386), (2722, 28574), (4082, 19054), (4396, 17693), (5444, 14287), (8164, 9527)]