20571661552

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{1291}}^1$

素因数の和:1479

約数の個数: 120

約数和(自身を含む): 44328912768

約数和(自身を除く): 23757251216

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 71, 83, 104, 142, 166, 169, 208, 284, 332, 338, 568, 664, 676, 923, 1079, 1136, 1291, 1328, 1352, 1846, 2158, 2582, 2704, 3692, 4316, 5164, 5893, 7384, 8632, 10328, 11786, 11999, 14027, 14768, 16783, 17264, 20656, 23572, 23998, 28054, 33566, 47144, 47996, 56108, 67132, 76609, 91661, 94288, 95992, 107153, 112216, 134264, 153218, 183322, 191984, 214306, 218179, 224432, 268528, 306436, 366644, 428612, 436358, 612872, 733288, 857224, 872716, 995917, 1191593, 1225744, 1392989, 1466576, 1714448, 1745432, 1991834, 2383186, 2785978, 3490864, 3983668, 4766372, 5571956, 7607863, 7967336, 9532744, 11143912, 15215726, 15490709, 15934672, 18108857, 19065488, 22287824, 30431452, 30981418, 36217714, 60862904, 61962836, 72435428, 98902219, 121725808, 123925672, 144870856, 197804438, 247851344, 289741712, 395608876, 791217752, 1285728847, 1582435504, 2571457694, 5142915388, 10285830776, 20571661552]

約数ペア:

[(1, 20571661552), (2, 10285830776), (4, 5142915388), (8, 2571457694), (13, 1582435504), (16, 1285728847), (26, 791217752), (52, 395608876), (71, 289741712), (83, 247851344), (104, 197804438), (142, 144870856), (166, 123925672), (169, 121725808), (208, 98902219), (284, 72435428), (332, 61962836), (338, 60862904), (568, 36217714), (664, 30981418), (676, 30431452), (923, 22287824), (1079, 19065488), (1136, 18108857), (1291, 15934672), (1328, 15490709), (1352, 15215726), (1846, 11143912), (2158, 9532744), (2582, 7967336), (2704, 7607863), (3692, 5571956), (4316, 4766372), (5164, 3983668), (5893, 3490864), (7384, 2785978), (8632, 2383186), (10328, 1991834), (11786, 1745432), (11999, 1714448), (14027, 1466576), (14768, 1392989), (16783, 1225744), (17264, 1191593), (20656, 995917), (23572, 872716), (23998, 857224), (28054, 733288), (33566, 612872), (47144, 436358), (47996, 428612), (56108, 366644), (67132, 306436), (76609, 268528), (91661, 224432), (94288, 218179), (95992, 214306), (107153, 191984), (112216, 183322), (134264, 153218)]