1939889920

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{503}}^1$

素因数の和:678

約数の個数: 144

約数和(自身を含む): 4895396352

約数和(自身を除く): 2955506432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 131, 160, 184, 230, 256, 262, 320, 368, 460, 503, 524, 640, 655, 736, 920, 1006, 1048, 1280, 1310, 1472, 1840, 2012, 2096, 2515, 2620, 2944, 3013, 3680, 4024, 4192, 5030, 5240, 5888, 6026, 7360, 8048, 8384, 10060, 10480, 11569, 12052, 14720, 15065, 16096, 16768, 20120, 20960, 23138, 24104, 29440, 30130, 32192, 33536, 40240, 41920, 46276, 48208, 57845, 60260, 64384, 65893, 80480, 83840, 92552, 96416, 115690, 120520, 128768, 131786, 160960, 167680, 185104, 192832, 231380, 241040, 263572, 321920, 329465, 370208, 385664, 462760, 482080, 527144, 643840, 658930, 740416, 771328, 925520, 964160, 1054288, 1317860, 1480832, 1515539, 1851040, 1928320, 2108576, 2635720, 2961664, 3031078, 3702080, 3856640, 4217152, 5271440, 6062156, 7404160, 7577695, 8434304, 10542880, 12124312, 14808320, 15155390, 16868608, 21085760, 24248624, 30310780, 42171520, 48497248, 60621560, 84343040, 96994496, 121243120, 193988992, 242486240, 387977984, 484972480, 969944960, 1939889920]

約数ペア:

[(1, 1939889920), (2, 969944960), (4, 484972480), (5, 387977984), (8, 242486240), (10, 193988992), (16, 121243120), (20, 96994496), (23, 84343040), (32, 60621560), (40, 48497248), (46, 42171520), (64, 30310780), (80, 24248624), (92, 21085760), (115, 16868608), (128, 15155390), (131, 14808320), (160, 12124312), (184, 10542880), (230, 8434304), (256, 7577695), (262, 7404160), (320, 6062156), (368, 5271440), (460, 4217152), (503, 3856640), (524, 3702080), (640, 3031078), (655, 2961664), (736, 2635720), (920, 2108576), (1006, 1928320), (1048, 1851040), (1280, 1515539), (1310, 1480832), (1472, 1317860), (1840, 1054288), (2012, 964160), (2096, 925520), (2515, 771328), (2620, 740416), (2944, 658930), (3013, 643840), (3680, 527144), (4024, 482080), (4192, 462760), (5030, 385664), (5240, 370208), (5888, 329465), (6026, 321920), (7360, 263572), (8048, 241040), (8384, 231380), (10060, 192832), (10480, 185104), (11569, 167680), (12052, 160960), (14720, 131786), (15065, 128768), (16096, 120520), (16768, 115690), (20120, 96416), (20960, 92552), (23138, 83840), (24104, 80480), (29440, 65893), (30130, 64384), (32192, 60260), (33536, 57845), (40240, 48208), (41920, 46276)]