122681260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{491}}^1$

素因数の和:575

約数の個数: 72

約数和(自身を含む): 287270928

約数和(自身を除く): 164589668

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 491, 620, 806, 961, 982, 1612, 1922, 1964, 2015, 2455, 3844, 4030, 4805, 4910, 6383, 8060, 9610, 9820, 12493, 12766, 15221, 19220, 24986, 25532, 30442, 31915, 49972, 60884, 62465, 63830, 76105, 124930, 127660, 152210, 197873, 249860, 304420, 395746, 471851, 791492, 943702, 989365, 1887404, 1978730, 2359255, 3957460, 4718510, 6134063, 9437020, 12268126, 24536252, 30670315, 61340630, 122681260]

約数ペア:

[(1, 122681260), (2, 61340630), (4, 30670315), (5, 24536252), (10, 12268126), (13, 9437020), (20, 6134063), (26, 4718510), (31, 3957460), (52, 2359255), (62, 1978730), (65, 1887404), (124, 989365), (130, 943702), (155, 791492), (260, 471851), (310, 395746), (403, 304420), (491, 249860), (620, 197873), (806, 152210), (961, 127660), (982, 124930), (1612, 76105), (1922, 63830), (1964, 62465), (2015, 60884), (2455, 49972), (3844, 31915), (4030, 30442), (4805, 25532), (4910, 24986), (6383, 19220), (8060, 15221), (9610, 12766), (9820, 12493)]