155203480

素因数分解:

$2^3\times 5^1\times {\mathrm{1747}}^1\times {\mathrm{2221}}^1$

素因数の和:3979

約数の個数: 32

約数和(自身を含む): 349565040

約数和(自身を除く): 194361560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1747, 2221, 3494, 4442, 6988, 8735, 8884, 11105, 13976, 17470, 17768, 22210, 34940, 44420, 69880, 88840, 3880087, 7760174, 15520348, 19400435, 31040696, 38800870, 77601740, 155203480]

約数ペア:

[(1, 155203480), (2, 77601740), (4, 38800870), (5, 31040696), (8, 19400435), (10, 15520348), (20, 7760174), (40, 3880087), (1747, 88840), (2221, 69880), (3494, 44420), (4442, 34940), (6988, 22210), (8735, 17768), (8884, 17470), (11105, 13976)]