215017985

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^2\times {\mathrm{127}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 325398528

約数和(自身を除く): 110380543

約数列:

[1, 5, 7, 13, 35, 61, 65, 91, 127, 305, 427, 455, 635, 793, 889, 1651, 2135, 3721, 3965, 4445, 5551, 7747, 8255, 11557, 18605, 26047, 27755, 38735, 48373, 54229, 57785, 100711, 130235, 241865, 271145, 338611, 472567, 503555, 704977, 1693055, 2362835, 3307969, 3524885, 6143371, 16539845, 30716855, 43003597, 215017985]

約数ペア:

[(1, 215017985), (5, 43003597), (7, 30716855), (13, 16539845), (35, 6143371), (61, 3524885), (65, 3307969), (91, 2362835), (127, 1693055), (305, 704977), (427, 503555), (455, 472567), (635, 338611), (793, 271145), (889, 241865), (1651, 130235), (2135, 100711), (3721, 57785), (3965, 54229), (4445, 48373), (5551, 38735), (7747, 27755), (8255, 26047), (11557, 18605)]