18305920

素因数分解:

$2^7\times 5^1\times {\mathrm{28603}}^1$

素因数の和:28622

約数の個数: 32

約数和(自身を含む): 43764120

約数和(自身を除く): 25458200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 28603, 57206, 114412, 143015, 228824, 286030, 457648, 572060, 915296, 1144120, 1830592, 2288240, 3661184, 4576480, 9152960, 18305920]

約数ペア:

[(1, 18305920), (2, 9152960), (4, 4576480), (5, 3661184), (8, 2288240), (10, 1830592), (16, 1144120), (20, 915296), (32, 572060), (40, 457648), (64, 286030), (80, 228824), (128, 143015), (160, 114412), (320, 57206), (640, 28603)]