128439640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{4729}}^1$

素因数の和:4844

約数の個数: 64

約数和(自身を含む): 333748800

約数和(自身を除く): 205309160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 97, 140, 194, 280, 388, 485, 679, 776, 970, 1358, 1940, 2716, 3395, 3880, 4729, 5432, 6790, 9458, 13580, 18916, 23645, 27160, 33103, 37832, 47290, 66206, 94580, 132412, 165515, 189160, 264824, 331030, 458713, 662060, 917426, 1324120, 1834852, 2293565, 3210991, 3669704, 4587130, 6421982, 9174260, 12843964, 16054955, 18348520, 25687928, 32109910, 64219820, 128439640]

約数ペア:

[(1, 128439640), (2, 64219820), (4, 32109910), (5, 25687928), (7, 18348520), (8, 16054955), (10, 12843964), (14, 9174260), (20, 6421982), (28, 4587130), (35, 3669704), (40, 3210991), (56, 2293565), (70, 1834852), (97, 1324120), (140, 917426), (194, 662060), (280, 458713), (388, 331030), (485, 264824), (679, 189160), (776, 165515), (970, 132412), (1358, 94580), (1940, 66206), (2716, 47290), (3395, 37832), (3880, 33103), (4729, 27160), (5432, 23645), (6790, 18916), (9458, 13580)]