256704480

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2003}}^1$

素因数の和:2113

約数の個数: 144

約数和(自身を含む): 886289040

約数和(自身を除く): 629584560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 89, 90, 96, 120, 144, 160, 178, 180, 240, 267, 288, 356, 360, 445, 480, 534, 712, 720, 801, 890, 1068, 1335, 1424, 1440, 1602, 1780, 2003, 2136, 2670, 2848, 3204, 3560, 4005, 4006, 4272, 5340, 6009, 6408, 7120, 8010, 8012, 8544, 10015, 10680, 12018, 12816, 14240, 16020, 16024, 18027, 20030, 21360, 24036, 25632, 30045, 32040, 32048, 36054, 40060, 42720, 48072, 60090, 64080, 64096, 72108, 80120, 90135, 96144, 120180, 128160, 144216, 160240, 178267, 180270, 192288, 240360, 288432, 320480, 356534, 360540, 480720, 534801, 576864, 713068, 721080, 891335, 961440, 1069602, 1426136, 1442160, 1604403, 1782670, 2139204, 2674005, 2852272, 2884320, 3208806, 3565340, 4278408, 5348010, 5704544, 6417612, 7130680, 8022015, 8556816, 10696020, 12835224, 14261360, 16044030, 17113632, 21392040, 25670448, 28522720, 32088060, 42784080, 51340896, 64176120, 85568160, 128352240, 256704480]

約数ペア:

[(1, 256704480), (2, 128352240), (3, 85568160), (4, 64176120), (5, 51340896), (6, 42784080), (8, 32088060), (9, 28522720), (10, 25670448), (12, 21392040), (15, 17113632), (16, 16044030), (18, 14261360), (20, 12835224), (24, 10696020), (30, 8556816), (32, 8022015), (36, 7130680), (40, 6417612), (45, 5704544), (48, 5348010), (60, 4278408), (72, 3565340), (80, 3208806), (89, 2884320), (90, 2852272), (96, 2674005), (120, 2139204), (144, 1782670), (160, 1604403), (178, 1442160), (180, 1426136), (240, 1069602), (267, 961440), (288, 891335), (356, 721080), (360, 713068), (445, 576864), (480, 534801), (534, 480720), (712, 360540), (720, 356534), (801, 320480), (890, 288432), (1068, 240360), (1335, 192288), (1424, 180270), (1440, 178267), (1602, 160240), (1780, 144216), (2003, 128160), (2136, 120180), (2670, 96144), (2848, 90135), (3204, 80120), (3560, 72108), (4005, 64096), (4006, 64080), (4272, 60090), (5340, 48072), (6009, 42720), (6408, 40060), (7120, 36054), (8010, 32048), (8012, 32040), (8544, 30045), (10015, 25632), (10680, 24036), (12018, 21360), (12816, 20030), (14240, 18027), (16020, 16024)]