77796320

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{9923}}^1$

素因数の和:9952

約数の個数: 72

約数和(自身を含む): 213822504

約数和(自身を除く): 136026184

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 9923, 19846, 39692, 49615, 69461, 79384, 99230, 138922, 158768, 198460, 277844, 317536, 347305, 396920, 486227, 555688, 694610, 793840, 972454, 1111376, 1389220, 1587680, 1944908, 2222752, 2431135, 2778440, 3889816, 4862270, 5556880, 7779632, 9724540, 11113760, 15559264, 19449080, 38898160, 77796320]

約数ペア:

[(1, 77796320), (2, 38898160), (4, 19449080), (5, 15559264), (7, 11113760), (8, 9724540), (10, 7779632), (14, 5556880), (16, 4862270), (20, 3889816), (28, 2778440), (32, 2431135), (35, 2222752), (40, 1944908), (49, 1587680), (56, 1389220), (70, 1111376), (80, 972454), (98, 793840), (112, 694610), (140, 555688), (160, 486227), (196, 396920), (224, 347305), (245, 317536), (280, 277844), (392, 198460), (490, 158768), (560, 138922), (784, 99230), (980, 79384), (1120, 69461), (1568, 49615), (1960, 39692), (3920, 19846), (7840, 9923)]