258073940440

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{13140221}}^1$

素因数の和:13140723

約数の個数: 32

約数和(自身を含む): 581849030160

約数和(自身を除く): 323775089720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4910, 9820, 19640, 13140221, 26280442, 52560884, 65701105, 105121768, 131402210, 262804420, 525608840, 6451848511, 12903697022, 25807394044, 32259242555, 51614788088, 64518485110, 129036970220, 258073940440]

約数ペア:

[(1, 258073940440), (2, 129036970220), (4, 64518485110), (5, 51614788088), (8, 32259242555), (10, 25807394044), (20, 12903697022), (40, 6451848511), (491, 525608840), (982, 262804420), (1964, 131402210), (2455, 105121768), (3928, 65701105), (4910, 52560884), (9820, 26280442), (19640, 13140221)]