256140144

素因数分解:

$2^4\times 3^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{661}}^1$

素因数の和:717

約数の個数: 200

約数和(自身を含む): 834342432

約数和(自身を除く): 578202288

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 23, 24, 26, 27, 36, 39, 46, 48, 52, 54, 69, 72, 78, 81, 92, 104, 108, 117, 138, 144, 156, 162, 184, 207, 208, 216, 234, 276, 299, 312, 324, 351, 368, 414, 432, 468, 552, 598, 621, 624, 648, 661, 702, 828, 897, 936, 1053, 1104, 1196, 1242, 1296, 1322, 1404, 1656, 1794, 1863, 1872, 1983, 2106, 2392, 2484, 2644, 2691, 2808, 3312, 3588, 3726, 3966, 4212, 4784, 4968, 5288, 5382, 5616, 5949, 7176, 7452, 7932, 8073, 8424, 8593, 9936, 10576, 10764, 11898, 14352, 14904, 15203, 15864, 16146, 16848, 17186, 17847, 21528, 23796, 24219, 25779, 29808, 30406, 31728, 32292, 34372, 35694, 43056, 45609, 47592, 48438, 51558, 53541, 60812, 64584, 68744, 71388, 77337, 91218, 95184, 96876, 103116, 107082, 121624, 129168, 136827, 137488, 142776, 154674, 182436, 193752, 197639, 206232, 214164, 232011, 243248, 273654, 285552, 309348, 364872, 387504, 395278, 410481, 412464, 428328, 464022, 547308, 592917, 618696, 696033, 729744, 790556, 820962, 856656, 928044, 1094616, 1185834, 1231443, 1237392, 1392066, 1581112, 1641924, 1778751, 1856088, 2189232, 2371668, 2462886, 2784132, 3162224, 3283848, 3557502, 3712176, 4743336, 4925772, 5336253, 5568264, 6567696, 7115004, 9486672, 9851544, 10672506, 11136528, 14230008, 16008759, 19703088, 21345012, 28460016, 32017518, 42690024, 64035036, 85380048, 128070072, 256140144]

約数ペア:

[(1, 256140144), (2, 128070072), (3, 85380048), (4, 64035036), (6, 42690024), (8, 32017518), (9, 28460016), (12, 21345012), (13, 19703088), (16, 16008759), (18, 14230008), (23, 11136528), (24, 10672506), (26, 9851544), (27, 9486672), (36, 7115004), (39, 6567696), (46, 5568264), (48, 5336253), (52, 4925772), (54, 4743336), (69, 3712176), (72, 3557502), (78, 3283848), (81, 3162224), (92, 2784132), (104, 2462886), (108, 2371668), (117, 2189232), (138, 1856088), (144, 1778751), (156, 1641924), (162, 1581112), (184, 1392066), (207, 1237392), (208, 1231443), (216, 1185834), (234, 1094616), (276, 928044), (299, 856656), (312, 820962), (324, 790556), (351, 729744), (368, 696033), (414, 618696), (432, 592917), (468, 547308), (552, 464022), (598, 428328), (621, 412464), (624, 410481), (648, 395278), (661, 387504), (702, 364872), (828, 309348), (897, 285552), (936, 273654), (1053, 243248), (1104, 232011), (1196, 214164), (1242, 206232), (1296, 197639), (1322, 193752), (1404, 182436), (1656, 154674), (1794, 142776), (1863, 137488), (1872, 136827), (1983, 129168), (2106, 121624), (2392, 107082), (2484, 103116), (2644, 96876), (2691, 95184), (2808, 91218), (3312, 77337), (3588, 71388), (3726, 68744), (3966, 64584), (4212, 60812), (4784, 53541), (4968, 51558), (5288, 48438), (5382, 47592), (5616, 45609), (5949, 43056), (7176, 35694), (7452, 34372), (7932, 32292), (8073, 31728), (8424, 30406), (8593, 29808), (9936, 25779), (10576, 24219), (10764, 23796), (11898, 21528), (14352, 17847), (14904, 17186), (15203, 16848), (15864, 16146)]