28015785

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:219

約数の個数: 96

約数和(自身を含む): 60702720

約数和(自身を除く): 32686935

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 31, 35, 45, 57, 63, 93, 95, 105, 133, 151, 155, 171, 217, 279, 285, 315, 399, 453, 465, 589, 651, 665, 755, 855, 1057, 1085, 1197, 1359, 1395, 1767, 1953, 1995, 2265, 2869, 2945, 3171, 3255, 4123, 4681, 5285, 5301, 5985, 6795, 8607, 8835, 9513, 9765, 12369, 14043, 14345, 15855, 20083, 20615, 23405, 25821, 26505, 32767, 37107, 42129, 43035, 47565, 60249, 61845, 70215, 88939, 98301, 100415, 129105, 163835, 180747, 185535, 210645, 266817, 294903, 301245, 444695, 491505, 622573, 800451, 903735, 1334085, 1474515, 1867719, 3112865, 4002255, 5603157, 9338595, 28015785]

約数ペア:

[(1, 28015785), (3, 9338595), (5, 5603157), (7, 4002255), (9, 3112865), (15, 1867719), (19, 1474515), (21, 1334085), (31, 903735), (35, 800451), (45, 622573), (57, 491505), (63, 444695), (93, 301245), (95, 294903), (105, 266817), (133, 210645), (151, 185535), (155, 180747), (171, 163835), (217, 129105), (279, 100415), (285, 98301), (315, 88939), (399, 70215), (453, 61845), (465, 60249), (589, 47565), (651, 43035), (665, 42129), (755, 37107), (855, 32767), (1057, 26505), (1085, 25821), (1197, 23405), (1359, 20615), (1395, 20083), (1767, 15855), (1953, 14345), (1995, 14043), (2265, 12369), (2869, 9765), (2945, 9513), (3171, 8835), (3255, 8607), (4123, 6795), (4681, 5985), (5285, 5301)]