18286720

素因数分解:

$2^7\times 5^1\times {\mathrm{28573}}^1$

素因数の和:28592

約数の個数: 32

約数和(自身を含む): 43718220

約数和(自身を除く): 25431500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 28573, 57146, 114292, 142865, 228584, 285730, 457168, 571460, 914336, 1142920, 1828672, 2285840, 3657344, 4571680, 9143360, 18286720]

約数ペア:

[(1, 18286720), (2, 9143360), (4, 4571680), (5, 3657344), (8, 2285840), (10, 1828672), (16, 1142920), (20, 914336), (32, 571460), (40, 457168), (64, 285730), (80, 228584), (128, 142865), (160, 114292), (320, 57146), (640, 28573)]