320637960

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:269

約数の個数: 256

約数和(自身を含む): 1128499200

約数和(自身を除く): 807861240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 31, 36, 40, 45, 54, 60, 61, 62, 72, 90, 93, 108, 120, 122, 124, 135, 155, 157, 180, 183, 186, 216, 244, 248, 270, 279, 305, 310, 314, 360, 366, 372, 465, 471, 488, 540, 549, 558, 610, 620, 628, 732, 744, 785, 837, 915, 930, 942, 1080, 1098, 1116, 1220, 1240, 1256, 1395, 1413, 1464, 1570, 1647, 1674, 1830, 1860, 1884, 1891, 2196, 2232, 2355, 2440, 2745, 2790, 2826, 3140, 3294, 3348, 3660, 3720, 3768, 3782, 4185, 4239, 4392, 4710, 4867, 5490, 5580, 5652, 5673, 6280, 6588, 6696, 7065, 7320, 7564, 8235, 8370, 8478, 9420, 9455, 9577, 9734, 10980, 11160, 11304, 11346, 13176, 14130, 14601, 15128, 16470, 16740, 16956, 17019, 18840, 18910, 19154, 19468, 21195, 21960, 22692, 24335, 28260, 28365, 28731, 29202, 32940, 33480, 33912, 34038, 37820, 38308, 38936, 42390, 43803, 45384, 47885, 48670, 51057, 56520, 56730, 57462, 58404, 65880, 68076, 73005, 75640, 76616, 84780, 85095, 86193, 87606, 95770, 97340, 102114, 113460, 114924, 116808, 131409, 136152, 143655, 146010, 169560, 170190, 172386, 175212, 191540, 194680, 204228, 219015, 226920, 229848, 255285, 258579, 262818, 287310, 292020, 296887, 340380, 344772, 350424, 383080, 408456, 430965, 438030, 510570, 517158, 525636, 574620, 584040, 593774, 657045, 680760, 689544, 861930, 876060, 890661, 1021140, 1034316, 1051272, 1149240, 1187548, 1292895, 1314090, 1484435, 1723860, 1752120, 1781322, 2042280, 2068632, 2375096, 2585790, 2628180, 2671983, 2968870, 3447720, 3562644, 4453305, 5171580, 5256360, 5343966, 5937740, 7125288, 8015949, 8906610, 10343160, 10687932, 11875480, 13359915, 16031898, 17813220, 21375864, 26719830, 32063796, 35626440, 40079745, 53439660, 64127592, 80159490, 106879320, 160318980, 320637960]

約数ペア:

[(1, 320637960), (2, 160318980), (3, 106879320), (4, 80159490), (5, 64127592), (6, 53439660), (8, 40079745), (9, 35626440), (10, 32063796), (12, 26719830), (15, 21375864), (18, 17813220), (20, 16031898), (24, 13359915), (27, 11875480), (30, 10687932), (31, 10343160), (36, 8906610), (40, 8015949), (45, 7125288), (54, 5937740), (60, 5343966), (61, 5256360), (62, 5171580), (72, 4453305), (90, 3562644), (93, 3447720), (108, 2968870), (120, 2671983), (122, 2628180), (124, 2585790), (135, 2375096), (155, 2068632), (157, 2042280), (180, 1781322), (183, 1752120), (186, 1723860), (216, 1484435), (244, 1314090), (248, 1292895), (270, 1187548), (279, 1149240), (305, 1051272), (310, 1034316), (314, 1021140), (360, 890661), (366, 876060), (372, 861930), (465, 689544), (471, 680760), (488, 657045), (540, 593774), (549, 584040), (558, 574620), (610, 525636), (620, 517158), (628, 510570), (732, 438030), (744, 430965), (785, 408456), (837, 383080), (915, 350424), (930, 344772), (942, 340380), (1080, 296887), (1098, 292020), (1116, 287310), (1220, 262818), (1240, 258579), (1256, 255285), (1395, 229848), (1413, 226920), (1464, 219015), (1570, 204228), (1647, 194680), (1674, 191540), (1830, 175212), (1860, 172386), (1884, 170190), (1891, 169560), (2196, 146010), (2232, 143655), (2355, 136152), (2440, 131409), (2745, 116808), (2790, 114924), (2826, 113460), (3140, 102114), (3294, 97340), (3348, 95770), (3660, 87606), (3720, 86193), (3768, 85095), (3782, 84780), (4185, 76616), (4239, 75640), (4392, 73005), (4710, 68076), (4867, 65880), (5490, 58404), (5580, 57462), (5652, 56730), (5673, 56520), (6280, 51057), (6588, 48670), (6696, 47885), (7065, 45384), (7320, 43803), (7564, 42390), (8235, 38936), (8370, 38308), (8478, 37820), (9420, 34038), (9455, 33912), (9577, 33480), (9734, 32940), (10980, 29202), (11160, 28731), (11304, 28365), (11346, 28260), (13176, 24335), (14130, 22692), (14601, 21960), (15128, 21195), (16470, 19468), (16740, 19154), (16956, 18910), (17019, 18840)]