20120155920

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{321203}}^1$

素因数の和:321254

約数の個数: 160

約数和(自身を含む): 71692732800

約数和(自身を除く): 51572576880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 29, 30, 36, 40, 45, 48, 54, 58, 60, 72, 80, 87, 90, 108, 116, 120, 135, 144, 145, 174, 180, 216, 232, 240, 261, 270, 290, 348, 360, 432, 435, 464, 522, 540, 580, 696, 720, 783, 870, 1044, 1080, 1160, 1305, 1392, 1566, 1740, 2088, 2160, 2320, 2610, 3132, 3480, 3915, 4176, 5220, 6264, 6960, 7830, 10440, 12528, 15660, 20880, 31320, 62640, 321203, 642406, 963609, 1284812, 1606015, 1927218, 2569624, 2890827, 3212030, 3854436, 4818045, 5139248, 5781654, 6424060, 7708872, 8672481, 9314887, 9636090, 11563308, 12848120, 14454135, 15417744, 17344962, 18629774, 19272180, 23126616, 25696240, 27944661, 28908270, 34689924, 37259548, 38544360, 43362405, 46253232, 46574435, 55889322, 57816540, 69379848, 74519096, 77088720, 83833983, 86724810, 93148870, 111778644, 115633080, 138759696, 139723305, 149038192, 167667966, 173449620, 186297740, 223557288, 231266160, 251501949, 279446610, 335335932, 346899240, 372595480, 419169915, 447114576, 503003898, 558893220, 670671864, 693798480, 745190960, 838339830, 1006007796, 1117786440, 1257509745, 1341343728, 1676679660, 2012015592, 2235572880, 2515019490, 3353359320, 4024031184, 5030038980, 6706718640, 10060077960, 20120155920]

約数ペア:

[(1, 20120155920), (2, 10060077960), (3, 6706718640), (4, 5030038980), (5, 4024031184), (6, 3353359320), (8, 2515019490), (9, 2235572880), (10, 2012015592), (12, 1676679660), (15, 1341343728), (16, 1257509745), (18, 1117786440), (20, 1006007796), (24, 838339830), (27, 745190960), (29, 693798480), (30, 670671864), (36, 558893220), (40, 503003898), (45, 447114576), (48, 419169915), (54, 372595480), (58, 346899240), (60, 335335932), (72, 279446610), (80, 251501949), (87, 231266160), (90, 223557288), (108, 186297740), (116, 173449620), (120, 167667966), (135, 149038192), (144, 139723305), (145, 138759696), (174, 115633080), (180, 111778644), (216, 93148870), (232, 86724810), (240, 83833983), (261, 77088720), (270, 74519096), (290, 69379848), (348, 57816540), (360, 55889322), (432, 46574435), (435, 46253232), (464, 43362405), (522, 38544360), (540, 37259548), (580, 34689924), (696, 28908270), (720, 27944661), (783, 25696240), (870, 23126616), (1044, 19272180), (1080, 18629774), (1160, 17344962), (1305, 15417744), (1392, 14454135), (1566, 12848120), (1740, 11563308), (2088, 9636090), (2160, 9314887), (2320, 8672481), (2610, 7708872), (3132, 6424060), (3480, 5781654), (3915, 5139248), (4176, 4818045), (5220, 3854436), (6264, 3212030), (6960, 2890827), (7830, 2569624), (10440, 1927218), (12528, 1606015), (15660, 1284812), (20880, 963609), (31320, 642406), (62640, 321203)]