394808840

素因数分解:

$2^3\times 5^1\times {\mathrm{953}}^1\times {\mathrm{10357}}^1$

素因数の和:11321

約数の個数: 32

約数和(自身を含む): 889337880

約数和(自身を除く): 494529040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 953, 1906, 3812, 4765, 7624, 9530, 10357, 19060, 20714, 38120, 41428, 51785, 82856, 103570, 207140, 414280, 9870221, 19740442, 39480884, 49351105, 78961768, 98702210, 197404420, 394808840]

約数ペア:

[(1, 394808840), (2, 197404420), (4, 98702210), (5, 78961768), (8, 49351105), (10, 39480884), (20, 19740442), (40, 9870221), (953, 414280), (1906, 207140), (3812, 103570), (4765, 82856), (7624, 51785), (9530, 41428), (10357, 38120), (19060, 20714)]