20280433355

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{373}}^1\times {\mathrm{397}}^1$

素因数の和:845

約数の個数: 96

約数和(自身を含む): 31358948544

約数和(自身を除く): 11078515189

約数列:

[1, 5, 7, 13, 35, 43, 49, 65, 91, 215, 245, 301, 373, 397, 455, 559, 637, 1505, 1865, 1985, 2107, 2611, 2779, 2795, 3185, 3913, 4849, 5161, 10535, 13055, 13895, 16039, 17071, 18277, 19453, 19565, 24245, 25805, 27391, 33943, 36127, 80195, 85355, 91385, 97265, 112273, 119497, 136955, 148081, 169715, 180635, 208507, 221923, 237601, 252889, 561365, 597485, 740405, 785911, 836479, 1036567, 1042535, 1109615, 1188005, 1264445, 1459549, 1553461, 1925053, 3929555, 4182395, 5182835, 6367483, 7255969, 7297745, 7767305, 9625265, 10216843, 10874227, 13475371, 31837415, 36279845, 44572381, 51084215, 54371135, 67376855, 82777279, 94327597, 222861905, 312006667, 413886395, 471637985, 579440953, 1560033335, 2897204765, 4056086671, 20280433355]

約数ペア:

[(1, 20280433355), (5, 4056086671), (7, 2897204765), (13, 1560033335), (35, 579440953), (43, 471637985), (49, 413886395), (65, 312006667), (91, 222861905), (215, 94327597), (245, 82777279), (301, 67376855), (373, 54371135), (397, 51084215), (455, 44572381), (559, 36279845), (637, 31837415), (1505, 13475371), (1865, 10874227), (1985, 10216843), (2107, 9625265), (2611, 7767305), (2779, 7297745), (2795, 7255969), (3185, 6367483), (3913, 5182835), (4849, 4182395), (5161, 3929555), (10535, 1925053), (13055, 1553461), (13895, 1459549), (16039, 1264445), (17071, 1188005), (18277, 1109615), (19453, 1042535), (19565, 1036567), (24245, 836479), (25805, 785911), (27391, 740405), (33943, 597485), (36127, 561365), (80195, 252889), (85355, 237601), (91385, 221923), (97265, 208507), (112273, 180635), (119497, 169715), (136955, 148081)]