164458880

素因数分解:

$2^7\times 5^1\times {\mathrm{256967}}^1$

素因数の和:256986

約数の個数: 32

約数和(自身を含む): 393161040

約数和(自身を除く): 228702160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 256967, 513934, 1027868, 1284835, 2055736, 2569670, 4111472, 5139340, 8222944, 10278680, 16445888, 20557360, 32891776, 41114720, 82229440, 164458880]

約数ペア:

[(1, 164458880), (2, 82229440), (4, 41114720), (5, 32891776), (8, 20557360), (10, 16445888), (16, 10278680), (20, 8222944), (32, 5139340), (40, 4111472), (64, 2569670), (80, 2055736), (128, 1284835), (160, 1027868), (320, 513934), (640, 256967)]