38805885

素因数分解:

$3^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2$

素因数の和:121

約数の個数: 72

約数和(自身を含む): 75260640

約数和(自身を除く): 36454755

約数列:

[1, 3, 5, 9, 15, 19, 27, 41, 45, 57, 81, 95, 123, 135, 171, 205, 243, 285, 369, 405, 513, 615, 779, 855, 1107, 1215, 1539, 1681, 1845, 2337, 2565, 3321, 3895, 4617, 5043, 5535, 7011, 7695, 8405, 9963, 11685, 15129, 16605, 21033, 23085, 25215, 31939, 35055, 45387, 49815, 63099, 75645, 95817, 105165, 136161, 159695, 189297, 226935, 287451, 315495, 408483, 479085, 680805, 862353, 946485, 1437255, 2042415, 2587059, 4311765, 7761177, 12935295, 38805885]

約数ペア:

[(1, 38805885), (3, 12935295), (5, 7761177), (9, 4311765), (15, 2587059), (19, 2042415), (27, 1437255), (41, 946485), (45, 862353), (57, 680805), (81, 479085), (95, 408483), (123, 315495), (135, 287451), (171, 226935), (205, 189297), (243, 159695), (285, 136161), (369, 105165), (405, 95817), (513, 75645), (615, 63099), (779, 49815), (855, 45387), (1107, 35055), (1215, 31939), (1539, 25215), (1681, 23085), (1845, 21033), (2337, 16605), (2565, 15129), (3321, 11685), (3895, 9963), (4617, 8405), (5043, 7695), (5535, 7011)]