19903653120

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{398711}}^1$

素因数の和:398748

約数の個数: 144

約数和(自身を含む): 68457255552

約数和(自身を除く): 48553602432

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 256, 260, 312, 320, 384, 390, 416, 480, 520, 624, 640, 768, 780, 832, 960, 1040, 1248, 1280, 1560, 1664, 1920, 2080, 2496, 3120, 3328, 3840, 4160, 4992, 6240, 8320, 9984, 12480, 16640, 24960, 49920, 398711, 797422, 1196133, 1594844, 1993555, 2392266, 3189688, 3987110, 4784532, 5183243, 5980665, 6379376, 7974220, 9569064, 10366486, 11961330, 12758752, 15549729, 15948440, 19138128, 20732972, 23922660, 25517504, 25916215, 31099458, 31896880, 38276256, 41465944, 47845320, 51035008, 51832430, 62198916, 63793760, 76552512, 77748645, 82931888, 95690640, 102070016, 103664860, 124397832, 127587520, 153105024, 155497290, 165863776, 191381280, 207329720, 248795664, 255175040, 306210048, 310994580, 331727552, 382762560, 414659440, 497591328, 510350080, 621989160, 663455104, 765525120, 829318880, 995182656, 1243978320, 1326910208, 1531050240, 1658637760, 1990365312, 2487956640, 3317275520, 3980730624, 4975913280, 6634551040, 9951826560, 19903653120]

約数ペア:

[(1, 19903653120), (2, 9951826560), (3, 6634551040), (4, 4975913280), (5, 3980730624), (6, 3317275520), (8, 2487956640), (10, 1990365312), (12, 1658637760), (13, 1531050240), (15, 1326910208), (16, 1243978320), (20, 995182656), (24, 829318880), (26, 765525120), (30, 663455104), (32, 621989160), (39, 510350080), (40, 497591328), (48, 414659440), (52, 382762560), (60, 331727552), (64, 310994580), (65, 306210048), (78, 255175040), (80, 248795664), (96, 207329720), (104, 191381280), (120, 165863776), (128, 155497290), (130, 153105024), (156, 127587520), (160, 124397832), (192, 103664860), (195, 102070016), (208, 95690640), (240, 82931888), (256, 77748645), (260, 76552512), (312, 63793760), (320, 62198916), (384, 51832430), (390, 51035008), (416, 47845320), (480, 41465944), (520, 38276256), (624, 31896880), (640, 31099458), (768, 25916215), (780, 25517504), (832, 23922660), (960, 20732972), (1040, 19138128), (1248, 15948440), (1280, 15549729), (1560, 12758752), (1664, 11961330), (1920, 10366486), (2080, 9569064), (2496, 7974220), (3120, 6379376), (3328, 5980665), (3840, 5183243), (4160, 4784532), (4992, 3987110), (6240, 3189688), (8320, 2392266), (9984, 1993555), (12480, 1594844), (16640, 1196133), (24960, 797422), (49920, 398711)]