1257515

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:123

約数の個数: 32

約数和(自身を含む): 1904640

約数和(自身を除く): 647125

約数列:

[1, 5, 7, 19, 31, 35, 61, 95, 133, 155, 217, 305, 427, 589, 665, 1085, 1159, 1891, 2135, 2945, 4123, 5795, 8113, 9455, 13237, 20615, 35929, 40565, 66185, 179645, 251503, 1257515]

約数ペア:

[(1, 1257515), (5, 251503), (7, 179645), (19, 66185), (31, 40565), (35, 35929), (61, 20615), (95, 13237), (133, 9455), (155, 8113), (217, 5795), (305, 4123), (427, 2945), (589, 2135), (665, 1891), (1085, 1159)]