20824660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2663}}^1$

素因数の和:2712

約数の個数: 48

約数和(自身を含む): 48335616

約数和(自身を除く): 27510956

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 782, 1564, 1955, 2663, 3910, 5326, 7820, 10652, 13315, 26630, 45271, 53260, 61249, 90542, 122498, 181084, 226355, 244996, 306245, 452710, 612490, 905420, 1041233, 1224980, 2082466, 4164932, 5206165, 10412330, 20824660]

約数ペア:

[(1, 20824660), (2, 10412330), (4, 5206165), (5, 4164932), (10, 2082466), (17, 1224980), (20, 1041233), (23, 905420), (34, 612490), (46, 452710), (68, 306245), (85, 244996), (92, 226355), (115, 181084), (170, 122498), (230, 90542), (340, 61249), (391, 53260), (460, 45271), (782, 26630), (1564, 13315), (1955, 10652), (2663, 7820), (3910, 5326)]