405493920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{21661}}^1$

素因数の和:21695

約数の個数: 144

約数和(自身を含む): 1490258952

約数和(自身を除く): 1084765032

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 195, 208, 234, 240, 260, 288, 312, 360, 390, 416, 468, 480, 520, 585, 624, 720, 780, 936, 1040, 1170, 1248, 1440, 1560, 1872, 2080, 2340, 3120, 3744, 4680, 6240, 9360, 18720, 21661, 43322, 64983, 86644, 108305, 129966, 173288, 194949, 216610, 259932, 281593, 324915, 346576, 389898, 433220, 519864, 563186, 649830, 693152, 779796, 844779, 866440, 974745, 1039728, 1126372, 1299660, 1407965, 1559592, 1689558, 1732880, 1949490, 2079456, 2252744, 2534337, 2599320, 2815930, 3119184, 3379116, 3465760, 3898980, 4223895, 4505488, 5068674, 5198640, 5631860, 6238368, 6758232, 7797960, 8447790, 9010976, 10137348, 10397280, 11263720, 12671685, 13516464, 15595920, 16895580, 20274696, 22527440, 25343370, 27032928, 31191840, 33791160, 40549392, 45054880, 50686740, 67582320, 81098784, 101373480, 135164640, 202746960, 405493920]

約数ペア:

[(1, 405493920), (2, 202746960), (3, 135164640), (4, 101373480), (5, 81098784), (6, 67582320), (8, 50686740), (9, 45054880), (10, 40549392), (12, 33791160), (13, 31191840), (15, 27032928), (16, 25343370), (18, 22527440), (20, 20274696), (24, 16895580), (26, 15595920), (30, 13516464), (32, 12671685), (36, 11263720), (39, 10397280), (40, 10137348), (45, 9010976), (48, 8447790), (52, 7797960), (60, 6758232), (65, 6238368), (72, 5631860), (78, 5198640), (80, 5068674), (90, 4505488), (96, 4223895), (104, 3898980), (117, 3465760), (120, 3379116), (130, 3119184), (144, 2815930), (156, 2599320), (160, 2534337), (180, 2252744), (195, 2079456), (208, 1949490), (234, 1732880), (240, 1689558), (260, 1559592), (288, 1407965), (312, 1299660), (360, 1126372), (390, 1039728), (416, 974745), (468, 866440), (480, 844779), (520, 779796), (585, 693152), (624, 649830), (720, 563186), (780, 519864), (936, 433220), (1040, 389898), (1170, 346576), (1248, 324915), (1440, 281593), (1560, 259932), (1872, 216610), (2080, 194949), (2340, 173288), (3120, 129966), (3744, 108305), (4680, 86644), (6240, 64983), (9360, 43322), (18720, 21661)]