394775640

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{661}}^1$

素因数の和:767

約数の個数: 256

約数和(自身を含む): 1525248000

約数和(自身を除く): 1130472360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 79, 84, 90, 105, 108, 120, 126, 135, 140, 158, 168, 180, 189, 210, 216, 237, 252, 270, 280, 315, 316, 360, 378, 395, 420, 474, 504, 540, 553, 630, 632, 661, 711, 756, 790, 840, 945, 948, 1080, 1106, 1185, 1260, 1322, 1422, 1512, 1580, 1659, 1890, 1896, 1983, 2133, 2212, 2370, 2520, 2644, 2765, 2844, 3160, 3305, 3318, 3555, 3780, 3966, 4266, 4424, 4627, 4740, 4977, 5288, 5530, 5688, 5949, 6610, 6636, 7110, 7560, 7932, 8295, 8532, 9254, 9480, 9915, 9954, 10665, 11060, 11898, 13220, 13272, 13881, 14220, 14931, 15864, 16590, 17064, 17847, 18508, 19830, 19908, 21330, 22120, 23135, 23796, 24885, 26440, 27762, 28440, 29745, 29862, 33180, 35694, 37016, 39660, 39816, 41643, 42660, 46270, 47592, 49770, 52219, 55524, 59490, 59724, 66360, 69405, 71388, 74655, 79320, 83286, 85320, 89235, 92540, 99540, 104438, 111048, 118980, 119448, 124929, 138810, 142776, 149310, 156657, 166572, 178470, 185080, 199080, 208215, 208876, 237960, 249858, 261095, 277620, 298620, 313314, 333144, 356940, 365533, 416430, 417752, 469971, 499716, 522190, 555240, 597240, 624645, 626628, 713880, 731066, 783285, 832860, 939942, 999432, 1044380, 1096599, 1249290, 1253256, 1409913, 1462132, 1566570, 1665720, 1827665, 1879884, 2088760, 2193198, 2349855, 2498580, 2819826, 2924264, 3133140, 3289797, 3655330, 3759768, 4386396, 4699710, 4997160, 5482995, 5639652, 6266280, 6579594, 7049565, 7310660, 8772792, 9399420, 9869391, 10965990, 11279304, 13159188, 14099130, 14621320, 16448985, 18798840, 19738782, 21931980, 26318376, 28198260, 32897970, 39477564, 43863960, 49346955, 56396520, 65795940, 78955128, 98693910, 131591880, 197387820, 394775640]

約数ペア:

[(1, 394775640), (2, 197387820), (3, 131591880), (4, 98693910), (5, 78955128), (6, 65795940), (7, 56396520), (8, 49346955), (9, 43863960), (10, 39477564), (12, 32897970), (14, 28198260), (15, 26318376), (18, 21931980), (20, 19738782), (21, 18798840), (24, 16448985), (27, 14621320), (28, 14099130), (30, 13159188), (35, 11279304), (36, 10965990), (40, 9869391), (42, 9399420), (45, 8772792), (54, 7310660), (56, 7049565), (60, 6579594), (63, 6266280), (70, 5639652), (72, 5482995), (79, 4997160), (84, 4699710), (90, 4386396), (105, 3759768), (108, 3655330), (120, 3289797), (126, 3133140), (135, 2924264), (140, 2819826), (158, 2498580), (168, 2349855), (180, 2193198), (189, 2088760), (210, 1879884), (216, 1827665), (237, 1665720), (252, 1566570), (270, 1462132), (280, 1409913), (315, 1253256), (316, 1249290), (360, 1096599), (378, 1044380), (395, 999432), (420, 939942), (474, 832860), (504, 783285), (540, 731066), (553, 713880), (630, 626628), (632, 624645), (661, 597240), (711, 555240), (756, 522190), (790, 499716), (840, 469971), (945, 417752), (948, 416430), (1080, 365533), (1106, 356940), (1185, 333144), (1260, 313314), (1322, 298620), (1422, 277620), (1512, 261095), (1580, 249858), (1659, 237960), (1890, 208876), (1896, 208215), (1983, 199080), (2133, 185080), (2212, 178470), (2370, 166572), (2520, 156657), (2644, 149310), (2765, 142776), (2844, 138810), (3160, 124929), (3305, 119448), (3318, 118980), (3555, 111048), (3780, 104438), (3966, 99540), (4266, 92540), (4424, 89235), (4627, 85320), (4740, 83286), (4977, 79320), (5288, 74655), (5530, 71388), (5688, 69405), (5949, 66360), (6610, 59724), (6636, 59490), (7110, 55524), (7560, 52219), (7932, 49770), (8295, 47592), (8532, 46270), (9254, 42660), (9480, 41643), (9915, 39816), (9954, 39660), (10665, 37016), (11060, 35694), (11898, 33180), (13220, 29862), (13272, 29745), (13881, 28440), (14220, 27762), (14931, 26440), (15864, 24885), (16590, 23796), (17064, 23135), (17847, 22120), (18508, 21330), (19830, 19908)]