638847680

素因数分解:

$2^6\times 5^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{359}}^1$

素因数の和:526

約数の個数: 112

約数和(自身を含む): 1566915840

約数和(自身を除く): 928068160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 83, 134, 160, 166, 268, 320, 332, 335, 359, 415, 536, 664, 670, 718, 830, 1072, 1328, 1340, 1436, 1660, 1795, 2144, 2656, 2680, 2872, 3320, 3590, 4288, 5312, 5360, 5561, 5744, 6640, 7180, 10720, 11122, 11488, 13280, 14360, 21440, 22244, 22976, 24053, 26560, 27805, 28720, 29797, 44488, 48106, 55610, 57440, 59594, 88976, 96212, 111220, 114880, 119188, 120265, 148985, 177952, 192424, 222440, 238376, 240530, 297970, 355904, 384848, 444880, 476752, 481060, 595940, 769696, 889760, 953504, 962120, 1191880, 1539392, 1779520, 1907008, 1924240, 1996399, 2383760, 3848480, 3992798, 4767520, 7696960, 7985596, 9535040, 9981995, 15971192, 19963990, 31942384, 39927980, 63884768, 79855960, 127769536, 159711920, 319423840, 638847680]

約数ペア:

[(1, 638847680), (2, 319423840), (4, 159711920), (5, 127769536), (8, 79855960), (10, 63884768), (16, 39927980), (20, 31942384), (32, 19963990), (40, 15971192), (64, 9981995), (67, 9535040), (80, 7985596), (83, 7696960), (134, 4767520), (160, 3992798), (166, 3848480), (268, 2383760), (320, 1996399), (332, 1924240), (335, 1907008), (359, 1779520), (415, 1539392), (536, 1191880), (664, 962120), (670, 953504), (718, 889760), (830, 769696), (1072, 595940), (1328, 481060), (1340, 476752), (1436, 444880), (1660, 384848), (1795, 355904), (2144, 297970), (2656, 240530), (2680, 238376), (2872, 222440), (3320, 192424), (3590, 177952), (4288, 148985), (5312, 120265), (5360, 119188), (5561, 114880), (5744, 111220), (6640, 96212), (7180, 88976), (10720, 59594), (11122, 57440), (11488, 55610), (13280, 48106), (14360, 44488), (21440, 29797), (22244, 28720), (22976, 27805), (24053, 26560)]