51353960

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:248

約数の個数: 128

約数和(自身を含む): 142560000

約数和(自身を除く): 91206040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 95, 98, 133, 140, 152, 190, 196, 197, 245, 266, 280, 343, 380, 392, 394, 490, 532, 665, 686, 760, 788, 931, 980, 985, 1064, 1330, 1372, 1379, 1576, 1715, 1862, 1960, 1970, 2660, 2744, 2758, 3430, 3724, 3743, 3940, 4655, 5320, 5516, 6517, 6860, 6895, 7448, 7486, 7880, 9310, 9653, 11032, 13034, 13720, 13790, 14972, 18620, 18715, 19306, 26068, 26201, 27580, 29944, 32585, 37240, 37430, 38612, 48265, 52136, 52402, 55160, 65170, 67571, 74860, 77224, 96530, 104804, 130340, 131005, 135142, 149720, 183407, 193060, 209608, 260680, 262010, 270284, 337855, 366814, 386120, 524020, 540568, 675710, 733628, 917035, 1048040, 1283849, 1351420, 1467256, 1834070, 2567698, 2702840, 3668140, 5135396, 6419245, 7336280, 10270792, 12838490, 25676980, 51353960]

約数ペア:

[(1, 51353960), (2, 25676980), (4, 12838490), (5, 10270792), (7, 7336280), (8, 6419245), (10, 5135396), (14, 3668140), (19, 2702840), (20, 2567698), (28, 1834070), (35, 1467256), (38, 1351420), (40, 1283849), (49, 1048040), (56, 917035), (70, 733628), (76, 675710), (95, 540568), (98, 524020), (133, 386120), (140, 366814), (152, 337855), (190, 270284), (196, 262010), (197, 260680), (245, 209608), (266, 193060), (280, 183407), (343, 149720), (380, 135142), (392, 131005), (394, 130340), (490, 104804), (532, 96530), (665, 77224), (686, 74860), (760, 67571), (788, 65170), (931, 55160), (980, 52402), (985, 52136), (1064, 48265), (1330, 38612), (1372, 37430), (1379, 37240), (1576, 32585), (1715, 29944), (1862, 27580), (1960, 26201), (1970, 26068), (2660, 19306), (2744, 18715), (2758, 18620), (3430, 14972), (3724, 13790), (3743, 13720), (3940, 13034), (4655, 11032), (5320, 9653), (5516, 9310), (6517, 7880), (6860, 7486), (6895, 7448)]