71638720

素因数分解:

$2^6\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1061}}^1$

素因数の和:1289

約数の個数: 56

約数和(自身を含む): 171559728

約数和(自身を除く): 99921008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 211, 320, 422, 844, 1055, 1061, 1688, 2110, 2122, 3376, 4220, 4244, 5305, 6752, 8440, 8488, 10610, 13504, 16880, 16976, 21220, 33760, 33952, 42440, 67520, 67904, 84880, 169760, 223871, 339520, 447742, 895484, 1119355, 1790968, 2238710, 3581936, 4477420, 7163872, 8954840, 14327744, 17909680, 35819360, 71638720]

約数ペア:

[(1, 71638720), (2, 35819360), (4, 17909680), (5, 14327744), (8, 8954840), (10, 7163872), (16, 4477420), (20, 3581936), (32, 2238710), (40, 1790968), (64, 1119355), (80, 895484), (160, 447742), (211, 339520), (320, 223871), (422, 169760), (844, 84880), (1055, 67904), (1061, 67520), (1688, 42440), (2110, 33952), (2122, 33760), (3376, 21220), (4220, 16976), (4244, 16880), (5305, 13504), (6752, 10610), (8440, 8488)]