640752236

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{37}}^2\times {\mathrm{6883}}^1$

素因数の和:6978

約数の個数: 36

約数和(自身を含む): 1220409288

約数和(自身を除く): 579657052

約数列:

[1, 2, 4, 17, 34, 37, 68, 74, 148, 629, 1258, 1369, 2516, 2738, 5476, 6883, 13766, 23273, 27532, 46546, 93092, 117011, 234022, 254671, 468044, 509342, 1018684, 4329407, 8658814, 9422827, 17317628, 18845654, 37691308, 160188059, 320376118, 640752236]

約数ペア:

[(1, 640752236), (2, 320376118), (4, 160188059), (17, 37691308), (34, 18845654), (37, 17317628), (68, 9422827), (74, 8658814), (148, 4329407), (629, 1018684), (1258, 509342), (1369, 468044), (2516, 254671), (2738, 234022), (5476, 117011), (6883, 93092), (13766, 46546), (23273, 27532)]