21820160

素因数分解:

$2^8\times 5^1\times {\mathrm{17047}}^1$

素因数の和:17068

約数の個数: 36

約数和(自身を含む): 52269168

約数和(自身を除く): 30449008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 17047, 34094, 68188, 85235, 136376, 170470, 272752, 340940, 545504, 681880, 1091008, 1363760, 2182016, 2727520, 4364032, 5455040, 10910080, 21820160]

約数ペア:

[(1, 21820160), (2, 10910080), (4, 5455040), (5, 4364032), (8, 2727520), (10, 2182016), (16, 1363760), (20, 1091008), (32, 681880), (40, 545504), (64, 340940), (80, 272752), (128, 170470), (160, 136376), (256, 85235), (320, 68188), (640, 34094), (1280, 17047)]