260354120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{521}}^1$

素因数の和:607

約数の個数: 96

約数和(自身を含む): 653115960

約数和(自身を除く): 392761840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 521, 620, 806, 961, 1042, 1240, 1612, 1922, 2015, 2084, 2605, 3224, 3844, 4030, 4168, 4805, 5210, 6773, 7688, 8060, 9610, 10420, 12493, 13546, 16120, 16151, 19220, 20840, 24986, 27092, 32302, 33865, 38440, 49972, 54184, 62465, 64604, 67730, 80755, 99944, 124930, 129208, 135460, 161510, 209963, 249860, 270920, 323020, 419926, 499720, 500681, 646040, 839852, 1001362, 1049815, 1679704, 2002724, 2099630, 2503405, 4005448, 4199260, 5006810, 6508853, 8398520, 10013620, 13017706, 20027240, 26035412, 32544265, 52070824, 65088530, 130177060, 260354120]

約数ペア:

[(1, 260354120), (2, 130177060), (4, 65088530), (5, 52070824), (8, 32544265), (10, 26035412), (13, 20027240), (20, 13017706), (26, 10013620), (31, 8398520), (40, 6508853), (52, 5006810), (62, 4199260), (65, 4005448), (104, 2503405), (124, 2099630), (130, 2002724), (155, 1679704), (248, 1049815), (260, 1001362), (310, 839852), (403, 646040), (520, 500681), (521, 499720), (620, 419926), (806, 323020), (961, 270920), (1042, 249860), (1240, 209963), (1612, 161510), (1922, 135460), (2015, 129208), (2084, 124930), (2605, 99944), (3224, 80755), (3844, 67730), (4030, 64604), (4168, 62465), (4805, 54184), (5210, 49972), (6773, 38440), (7688, 33865), (8060, 32302), (9610, 27092), (10420, 24986), (12493, 20840), (13546, 19220), (16120, 16151)]