20400985280

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{2699}}^1$

素因数の和:2831

約数の個数: 224

約数和(自身を含む): 55302912000

約数和(自身を除く): 34901926720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 64, 65, 79, 80, 92, 104, 115, 130, 158, 160, 184, 208, 230, 260, 299, 316, 320, 368, 395, 416, 460, 520, 598, 632, 736, 790, 832, 920, 1027, 1040, 1196, 1264, 1472, 1495, 1580, 1817, 1840, 2054, 2080, 2392, 2528, 2699, 2990, 3160, 3634, 3680, 4108, 4160, 4784, 5056, 5135, 5398, 5980, 6320, 7268, 7360, 8216, 9085, 9568, 10270, 10796, 11960, 12640, 13495, 14536, 16432, 18170, 19136, 20540, 21592, 23621, 23920, 25280, 26990, 29072, 32864, 35087, 36340, 41080, 43184, 47242, 47840, 53980, 58144, 62077, 65728, 70174, 72680, 82160, 86368, 94484, 95680, 107960, 116288, 118105, 124154, 140348, 145360, 164320, 172736, 175435, 188968, 213221, 215920, 236210, 248308, 280696, 290720, 310385, 328640, 350870, 377936, 426442, 431840, 472420, 496616, 561392, 581440, 620770, 701740, 755872, 807001, 852884, 863680, 944840, 993232, 1066105, 1122784, 1241540, 1403480, 1511744, 1614002, 1705768, 1889680, 1986464, 2132210, 2245568, 2483080, 2771873, 2806960, 3228004, 3411536, 3779360, 3972928, 4035005, 4264420, 4904083, 4966160, 5543746, 5613920, 6456008, 6823072, 7558720, 8070010, 8528840, 9808166, 9932320, 11087492, 11227840, 12912016, 13646144, 13859365, 16140020, 17057680, 19616332, 19864640, 22174984, 24520415, 25824032, 27718730, 32280040, 34115360, 39232664, 44349968, 49040830, 51648064, 55437460, 63753079, 64560080, 68230720, 78465328, 88699936, 98081660, 110874920, 127506158, 129120160, 156930656, 177399872, 196163320, 221749840, 255012316, 258240320, 313861312, 318765395, 392326640, 443499680, 510024632, 637530790, 784653280, 886999360, 1020049264, 1275061580, 1569306560, 2040098528, 2550123160, 4080197056, 5100246320, 10200492640, 20400985280]

約数ペア:

[(1, 20400985280), (2, 10200492640), (4, 5100246320), (5, 4080197056), (8, 2550123160), (10, 2040098528), (13, 1569306560), (16, 1275061580), (20, 1020049264), (23, 886999360), (26, 784653280), (32, 637530790), (40, 510024632), (46, 443499680), (52, 392326640), (64, 318765395), (65, 313861312), (79, 258240320), (80, 255012316), (92, 221749840), (104, 196163320), (115, 177399872), (130, 156930656), (158, 129120160), (160, 127506158), (184, 110874920), (208, 98081660), (230, 88699936), (260, 78465328), (299, 68230720), (316, 64560080), (320, 63753079), (368, 55437460), (395, 51648064), (416, 49040830), (460, 44349968), (520, 39232664), (598, 34115360), (632, 32280040), (736, 27718730), (790, 25824032), (832, 24520415), (920, 22174984), (1027, 19864640), (1040, 19616332), (1196, 17057680), (1264, 16140020), (1472, 13859365), (1495, 13646144), (1580, 12912016), (1817, 11227840), (1840, 11087492), (2054, 9932320), (2080, 9808166), (2392, 8528840), (2528, 8070010), (2699, 7558720), (2990, 6823072), (3160, 6456008), (3634, 5613920), (3680, 5543746), (4108, 4966160), (4160, 4904083), (4784, 4264420), (5056, 4035005), (5135, 3972928), (5398, 3779360), (5980, 3411536), (6320, 3228004), (7268, 2806960), (7360, 2771873), (8216, 2483080), (9085, 2245568), (9568, 2132210), (10270, 1986464), (10796, 1889680), (11960, 1705768), (12640, 1614002), (13495, 1511744), (14536, 1403480), (16432, 1241540), (18170, 1122784), (19136, 1066105), (20540, 993232), (21592, 944840), (23621, 863680), (23920, 852884), (25280, 807001), (26990, 755872), (29072, 701740), (32864, 620770), (35087, 581440), (36340, 561392), (41080, 496616), (43184, 472420), (47242, 431840), (47840, 426442), (53980, 377936), (58144, 350870), (62077, 328640), (65728, 310385), (70174, 290720), (72680, 280696), (82160, 248308), (86368, 236210), (94484, 215920), (95680, 213221), (107960, 188968), (116288, 175435), (118105, 172736), (124154, 164320), (140348, 145360)]