321357240

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1997}}^1$

素因数の和:2166

約数の個数: 128

約数和(自身を含む): 1078920000

約数和(自身を除く): 757562760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 149, 180, 216, 270, 298, 360, 447, 540, 596, 745, 894, 1080, 1192, 1341, 1490, 1788, 1997, 2235, 2682, 2980, 3576, 3994, 4023, 4470, 5364, 5960, 5991, 6705, 7988, 8046, 8940, 9985, 10728, 11982, 13410, 15976, 16092, 17880, 17973, 19970, 20115, 23964, 26820, 29955, 32184, 35946, 39940, 40230, 47928, 53640, 53919, 59910, 71892, 79880, 80460, 89865, 107838, 119820, 143784, 160920, 179730, 215676, 239640, 269595, 297553, 359460, 431352, 539190, 595106, 718920, 892659, 1078380, 1190212, 1487765, 1785318, 2156760, 2380424, 2677977, 2975530, 3570636, 4463295, 5355954, 5951060, 7141272, 8033931, 8926590, 10711908, 11902120, 13389885, 16067862, 17853180, 21423816, 26779770, 32135724, 35706360, 40169655, 53559540, 64271448, 80339310, 107119080, 160678620, 321357240]

約数ペア:

[(1, 321357240), (2, 160678620), (3, 107119080), (4, 80339310), (5, 64271448), (6, 53559540), (8, 40169655), (9, 35706360), (10, 32135724), (12, 26779770), (15, 21423816), (18, 17853180), (20, 16067862), (24, 13389885), (27, 11902120), (30, 10711908), (36, 8926590), (40, 8033931), (45, 7141272), (54, 5951060), (60, 5355954), (72, 4463295), (90, 3570636), (108, 2975530), (120, 2677977), (135, 2380424), (149, 2156760), (180, 1785318), (216, 1487765), (270, 1190212), (298, 1078380), (360, 892659), (447, 718920), (540, 595106), (596, 539190), (745, 431352), (894, 359460), (1080, 297553), (1192, 269595), (1341, 239640), (1490, 215676), (1788, 179730), (1997, 160920), (2235, 143784), (2682, 119820), (2980, 107838), (3576, 89865), (3994, 80460), (4023, 79880), (4470, 71892), (5364, 59910), (5960, 53919), (5991, 53640), (6705, 47928), (7988, 40230), (8046, 39940), (8940, 35946), (9985, 32184), (10728, 29955), (11982, 26820), (13410, 23964), (15976, 20115), (16092, 19970), (17880, 17973)]