20159391028

素因数分解:

$2^2\times 7^1\times {\mathrm{641}}^1\times {\mathrm{1123211}}^1$

素因数の和:1123863

約数の個数: 24

約数和(自身を含む): 40381717824

約数和(自身を除く): 20222326796

約数列:

[1, 2, 4, 7, 14, 28, 641, 1282, 2564, 4487, 8974, 17948, 1123211, 2246422, 4492844, 7862477, 15724954, 31449908, 719978251, 1439956502, 2879913004, 5039847757, 10079695514, 20159391028]

約数ペア:

[(1, 20159391028), (2, 10079695514), (4, 5039847757), (7, 2879913004), (14, 1439956502), (28, 719978251), (641, 31449908), (1282, 15724954), (2564, 7862477), (4487, 4492844), (8974, 2246422), (17948, 1123211)]