320820240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{107}}^1$

素因数の和:198

約数の個数: 240

約数和(自身を含む): 1117053504

約数和(自身を除く): 796233264

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 31, 39, 40, 48, 52, 60, 62, 65, 78, 80, 93, 104, 107, 120, 124, 130, 155, 156, 186, 195, 208, 214, 240, 248, 260, 310, 312, 321, 372, 390, 403, 428, 465, 496, 520, 535, 620, 624, 642, 744, 780, 806, 856, 930, 961, 1040, 1070, 1209, 1240, 1284, 1391, 1488, 1560, 1605, 1612, 1712, 1860, 1922, 2015, 2140, 2418, 2480, 2568, 2782, 2883, 3120, 3210, 3224, 3317, 3720, 3844, 4030, 4173, 4280, 4805, 4836, 5136, 5564, 5766, 6045, 6420, 6448, 6634, 6955, 7440, 7688, 8060, 8346, 8560, 9610, 9672, 9951, 11128, 11532, 12090, 12493, 12840, 13268, 13910, 14415, 15376, 16120, 16585, 16692, 19220, 19344, 19902, 20865, 22256, 23064, 24180, 24986, 25680, 26536, 27820, 28830, 32240, 33170, 33384, 37479, 38440, 39804, 41730, 43121, 46128, 48360, 49755, 49972, 53072, 55640, 57660, 62465, 66340, 66768, 74958, 76880, 79608, 83460, 86242, 96720, 99510, 99944, 102827, 111280, 115320, 124930, 129363, 132680, 149916, 159216, 166920, 172484, 187395, 199020, 199888, 205654, 215605, 230640, 249860, 258726, 265360, 299832, 308481, 333840, 344968, 374790, 398040, 411308, 431210, 499720, 514135, 517452, 599664, 616962, 646815, 689936, 749580, 796080, 822616, 862420, 999440, 1028270, 1034904, 1233924, 1293630, 1336751, 1499160, 1542405, 1645232, 1724840, 2056540, 2069808, 2467848, 2587260, 2673502, 2998320, 3084810, 3449680, 4010253, 4113080, 4935696, 5174520, 5347004, 6169620, 6683755, 8020506, 8226160, 10349040, 10694008, 12339240, 13367510, 16041012, 20051265, 21388016, 24678480, 26735020, 32082024, 40102530, 53470040, 64164048, 80205060, 106940080, 160410120, 320820240]

約数ペア:

[(1, 320820240), (2, 160410120), (3, 106940080), (4, 80205060), (5, 64164048), (6, 53470040), (8, 40102530), (10, 32082024), (12, 26735020), (13, 24678480), (15, 21388016), (16, 20051265), (20, 16041012), (24, 13367510), (26, 12339240), (30, 10694008), (31, 10349040), (39, 8226160), (40, 8020506), (48, 6683755), (52, 6169620), (60, 5347004), (62, 5174520), (65, 4935696), (78, 4113080), (80, 4010253), (93, 3449680), (104, 3084810), (107, 2998320), (120, 2673502), (124, 2587260), (130, 2467848), (155, 2069808), (156, 2056540), (186, 1724840), (195, 1645232), (208, 1542405), (214, 1499160), (240, 1336751), (248, 1293630), (260, 1233924), (310, 1034904), (312, 1028270), (321, 999440), (372, 862420), (390, 822616), (403, 796080), (428, 749580), (465, 689936), (496, 646815), (520, 616962), (535, 599664), (620, 517452), (624, 514135), (642, 499720), (744, 431210), (780, 411308), (806, 398040), (856, 374790), (930, 344968), (961, 333840), (1040, 308481), (1070, 299832), (1209, 265360), (1240, 258726), (1284, 249860), (1391, 230640), (1488, 215605), (1560, 205654), (1605, 199888), (1612, 199020), (1712, 187395), (1860, 172484), (1922, 166920), (2015, 159216), (2140, 149916), (2418, 132680), (2480, 129363), (2568, 124930), (2782, 115320), (2883, 111280), (3120, 102827), (3210, 99944), (3224, 99510), (3317, 96720), (3720, 86242), (3844, 83460), (4030, 79608), (4173, 76880), (4280, 74958), (4805, 66768), (4836, 66340), (5136, 62465), (5564, 57660), (5766, 55640), (6045, 53072), (6420, 49972), (6448, 49755), (6634, 48360), (6955, 46128), (7440, 43121), (7688, 41730), (8060, 39804), (8346, 38440), (8560, 37479), (9610, 33384), (9672, 33170), (9951, 32240), (11128, 28830), (11532, 27820), (12090, 26536), (12493, 25680), (12840, 24986), (13268, 24180), (13910, 23064), (14415, 22256), (15376, 20865), (16120, 19902), (16585, 19344), (16692, 19220)]