19641230960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{2591}}^1$

素因数の和:2851

約数の個数: 160

約数和(自身を含む): 50783749632

約数和(自身を除く): 31142518672

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 37, 40, 52, 65, 74, 80, 104, 130, 148, 185, 197, 208, 260, 296, 370, 394, 481, 520, 592, 740, 788, 962, 985, 1040, 1480, 1576, 1924, 1970, 2405, 2561, 2591, 2960, 3152, 3848, 3940, 4810, 5122, 5182, 7289, 7696, 7880, 9620, 10244, 10364, 12805, 12955, 14578, 15760, 19240, 20488, 20728, 25610, 25910, 29156, 33683, 36445, 38480, 40976, 41456, 51220, 51820, 58312, 67366, 72890, 94757, 95867, 102440, 103640, 116624, 134732, 145780, 168415, 189514, 191734, 204880, 207280, 269464, 291560, 336830, 379028, 383468, 473785, 479335, 510427, 538928, 583120, 673660, 758056, 766936, 947570, 958670, 1020854, 1246271, 1347320, 1516112, 1533872, 1895140, 1917340, 2041708, 2492542, 2552135, 2694640, 3790280, 3834680, 4083416, 4985084, 5104270, 6231355, 6635551, 7580560, 7669360, 8166832, 9970168, 10208540, 12462710, 13271102, 18885799, 19940336, 20417080, 24925420, 26542204, 33177755, 37771598, 40834160, 49850840, 53084408, 66355510, 75543196, 94428995, 99701680, 106168816, 132711020, 151086392, 188857990, 245515387, 265422040, 302172784, 377715980, 491030774, 530844080, 755431960, 982061548, 1227576935, 1510863920, 1964123096, 2455153870, 3928246192, 4910307740, 9820615480, 19641230960]

約数ペア:

[(1, 19641230960), (2, 9820615480), (4, 4910307740), (5, 3928246192), (8, 2455153870), (10, 1964123096), (13, 1510863920), (16, 1227576935), (20, 982061548), (26, 755431960), (37, 530844080), (40, 491030774), (52, 377715980), (65, 302172784), (74, 265422040), (80, 245515387), (104, 188857990), (130, 151086392), (148, 132711020), (185, 106168816), (197, 99701680), (208, 94428995), (260, 75543196), (296, 66355510), (370, 53084408), (394, 49850840), (481, 40834160), (520, 37771598), (592, 33177755), (740, 26542204), (788, 24925420), (962, 20417080), (985, 19940336), (1040, 18885799), (1480, 13271102), (1576, 12462710), (1924, 10208540), (1970, 9970168), (2405, 8166832), (2561, 7669360), (2591, 7580560), (2960, 6635551), (3152, 6231355), (3848, 5104270), (3940, 4985084), (4810, 4083416), (5122, 3834680), (5182, 3790280), (7289, 2694640), (7696, 2552135), (7880, 2492542), (9620, 2041708), (10244, 1917340), (10364, 1895140), (12805, 1533872), (12955, 1516112), (14578, 1347320), (15760, 1246271), (19240, 1020854), (20488, 958670), (20728, 947570), (25610, 766936), (25910, 758056), (29156, 673660), (33683, 583120), (36445, 538928), (38480, 510427), (40976, 479335), (41456, 473785), (51220, 383468), (51820, 379028), (58312, 336830), (67366, 291560), (72890, 269464), (94757, 207280), (95867, 204880), (102440, 191734), (103640, 189514), (116624, 168415), (134732, 145780)]