20357930

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{983}}^1$

素因数の和:1118

約数の個数: 32

約数和(自身を含む): 38966400

約数和(自身を除く): 18608470

約数列:

[1, 2, 5, 10, 19, 38, 95, 109, 190, 218, 545, 983, 1090, 1966, 2071, 4142, 4915, 9830, 10355, 18677, 20710, 37354, 93385, 107147, 186770, 214294, 535735, 1071470, 2035793, 4071586, 10178965, 20357930]

約数ペア:

[(1, 20357930), (2, 10178965), (5, 4071586), (10, 2035793), (19, 1071470), (38, 535735), (95, 214294), (109, 186770), (190, 107147), (218, 93385), (545, 37354), (983, 20710), (1090, 18677), (1966, 10355), (2071, 9830), (4142, 4915)]