1277771990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1559}}^1\times {\mathrm{7451}}^1$

素因数の和:9028

約数の個数: 32

約数和(自身を含む): 2511025920

約数和(自身を除く): 1233253930

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 1559, 3118, 7451, 7795, 14902, 15590, 17149, 34298, 37255, 74510, 81961, 85745, 163922, 171490, 409805, 819610, 11616109, 23232218, 58080545, 116161090, 127777199, 255554398, 638885995, 1277771990]

約数ペア:

[(1, 1277771990), (2, 638885995), (5, 255554398), (10, 127777199), (11, 116161090), (22, 58080545), (55, 23232218), (110, 11616109), (1559, 819610), (3118, 409805), (7451, 171490), (7795, 163922), (14902, 85745), (15590, 81961), (17149, 74510), (34298, 37255)]