207968215

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 319979520

約数和(自身を除く): 112011305

約数列:

[1, 5, 7, 13, 35, 59, 61, 65, 91, 127, 295, 305, 413, 427, 455, 635, 767, 793, 889, 1651, 2065, 2135, 3599, 3835, 3965, 4445, 5369, 5551, 7493, 7747, 8255, 11557, 17995, 25193, 26845, 27755, 37465, 38735, 46787, 52451, 54229, 57785, 97409, 100711, 125965, 233935, 262255, 271145, 327509, 457073, 487045, 503555, 681863, 704977, 1637545, 2285365, 3199511, 3409315, 3524885, 5941949, 15997555, 29709745, 41593643, 207968215]

約数ペア:

[(1, 207968215), (5, 41593643), (7, 29709745), (13, 15997555), (35, 5941949), (59, 3524885), (61, 3409315), (65, 3199511), (91, 2285365), (127, 1637545), (295, 704977), (305, 681863), (413, 503555), (427, 487045), (455, 457073), (635, 327509), (767, 271145), (793, 262255), (889, 233935), (1651, 125965), (2065, 100711), (2135, 97409), (3599, 57785), (3835, 54229), (3965, 52451), (4445, 46787), (5369, 38735), (5551, 37465), (7493, 27755), (7747, 26845), (8255, 25193), (11557, 17995)]