20138945280

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{308501}}^1$

素因数の和:308542

約数の個数: 144

約数和(自身を含む): 68102433504

約数和(自身を除く): 47963488224

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 128, 136, 160, 170, 192, 204, 240, 255, 256, 272, 320, 340, 384, 408, 480, 510, 544, 640, 680, 768, 816, 960, 1020, 1088, 1280, 1360, 1632, 1920, 2040, 2176, 2720, 3264, 3840, 4080, 4352, 5440, 6528, 8160, 10880, 13056, 16320, 21760, 32640, 65280, 308501, 617002, 925503, 1234004, 1542505, 1851006, 2468008, 3085010, 3702012, 4627515, 4936016, 5244517, 6170020, 7404024, 9255030, 9872032, 10489034, 12340040, 14808048, 15733551, 18510060, 19744064, 20978068, 24680080, 26222585, 29616096, 31467102, 37020120, 39488128, 41956136, 49360160, 52445170, 59232192, 62934204, 74040240, 78667755, 78976256, 83912272, 98720320, 104890340, 118464384, 125868408, 148080480, 157335510, 167824544, 197440640, 209780680, 236928768, 251736816, 296160960, 314671020, 335649088, 394881280, 419561360, 503473632, 592321920, 629342040, 671298176, 839122720, 1006947264, 1184643840, 1258684080, 1342596352, 1678245440, 2013894528, 2517368160, 3356490880, 4027789056, 5034736320, 6712981760, 10069472640, 20138945280]

約数ペア:

[(1, 20138945280), (2, 10069472640), (3, 6712981760), (4, 5034736320), (5, 4027789056), (6, 3356490880), (8, 2517368160), (10, 2013894528), (12, 1678245440), (15, 1342596352), (16, 1258684080), (17, 1184643840), (20, 1006947264), (24, 839122720), (30, 671298176), (32, 629342040), (34, 592321920), (40, 503473632), (48, 419561360), (51, 394881280), (60, 335649088), (64, 314671020), (68, 296160960), (80, 251736816), (85, 236928768), (96, 209780680), (102, 197440640), (120, 167824544), (128, 157335510), (136, 148080480), (160, 125868408), (170, 118464384), (192, 104890340), (204, 98720320), (240, 83912272), (255, 78976256), (256, 78667755), (272, 74040240), (320, 62934204), (340, 59232192), (384, 52445170), (408, 49360160), (480, 41956136), (510, 39488128), (544, 37020120), (640, 31467102), (680, 29616096), (768, 26222585), (816, 24680080), (960, 20978068), (1020, 19744064), (1088, 18510060), (1280, 15733551), (1360, 14808048), (1632, 12340040), (1920, 10489034), (2040, 9872032), (2176, 9255030), (2720, 7404024), (3264, 6170020), (3840, 5244517), (4080, 4936016), (4352, 4627515), (5440, 3702012), (6528, 3085010), (8160, 2468008), (10880, 1851006), (13056, 1542505), (16320, 1234004), (21760, 925503), (32640, 617002), (65280, 308501)]