31187080

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{311}}^1$

素因数の和:454

約数の個数: 64

約数和(自身を含む): 74131200

約数和(自身を除く): 42944120

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 109, 115, 184, 218, 230, 311, 436, 460, 545, 622, 872, 920, 1090, 1244, 1555, 2180, 2488, 2507, 3110, 4360, 5014, 6220, 7153, 10028, 12440, 12535, 14306, 20056, 25070, 28612, 33899, 35765, 50140, 57224, 67798, 71530, 100280, 135596, 143060, 169495, 271192, 286120, 338990, 677980, 779677, 1355960, 1559354, 3118708, 3898385, 6237416, 7796770, 15593540, 31187080]

約数ペア:

[(1, 31187080), (2, 15593540), (4, 7796770), (5, 6237416), (8, 3898385), (10, 3118708), (20, 1559354), (23, 1355960), (40, 779677), (46, 677980), (92, 338990), (109, 286120), (115, 271192), (184, 169495), (218, 143060), (230, 135596), (311, 100280), (436, 71530), (460, 67798), (545, 57224), (622, 50140), (872, 35765), (920, 33899), (1090, 28612), (1244, 25070), (1555, 20056), (2180, 14306), (2488, 12535), (2507, 12440), (3110, 10028), (4360, 7153), (5014, 6220)]