77901880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{4561}}^1$

素因数の和:4640

約数の個数: 64

約数和(自身を含む): 203647680

約数和(自身を除く): 125745800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 122, 140, 244, 280, 305, 427, 488, 610, 854, 1220, 1708, 2135, 2440, 3416, 4270, 4561, 8540, 9122, 17080, 18244, 22805, 31927, 36488, 45610, 63854, 91220, 127708, 159635, 182440, 255416, 278221, 319270, 556442, 638540, 1112884, 1277080, 1391105, 1947547, 2225768, 2782210, 3895094, 5564420, 7790188, 9737735, 11128840, 15580376, 19475470, 38950940, 77901880]

約数ペア:

[(1, 77901880), (2, 38950940), (4, 19475470), (5, 15580376), (7, 11128840), (8, 9737735), (10, 7790188), (14, 5564420), (20, 3895094), (28, 2782210), (35, 2225768), (40, 1947547), (56, 1391105), (61, 1277080), (70, 1112884), (122, 638540), (140, 556442), (244, 319270), (280, 278221), (305, 255416), (427, 182440), (488, 159635), (610, 127708), (854, 91220), (1220, 63854), (1708, 45610), (2135, 36488), (2440, 31927), (3416, 22805), (4270, 18244), (4561, 17080), (8540, 9122)]