21735040

素因数分解:

$2^7\times 5^1\times {\mathrm{33961}}^1$

素因数の和:33980

約数の個数: 32

約数和(自身を含む): 51961860

約数和(自身を除く): 30226820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 33961, 67922, 135844, 169805, 271688, 339610, 543376, 679220, 1086752, 1358440, 2173504, 2716880, 4347008, 5433760, 10867520, 21735040]

約数ペア:

[(1, 21735040), (2, 10867520), (4, 5433760), (5, 4347008), (8, 2716880), (10, 2173504), (16, 1358440), (20, 1086752), (32, 679220), (40, 543376), (64, 339610), (80, 271688), (128, 169805), (160, 135844), (320, 67922), (640, 33961)]