1264492040

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{645149}}^1$

素因数の和:645174

約数の個数: 48

約数和(自身を含む): 3309619500

約数和(自身を除く): 2045127460

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 645149, 1290298, 2580596, 3225745, 4516043, 5161192, 6451490, 9032086, 12902980, 18064172, 22580215, 25805960, 31612301, 36128344, 45160430, 63224602, 90320860, 126449204, 158061505, 180641720, 252898408, 316123010, 632246020, 1264492040]

約数ペア:

[(1, 1264492040), (2, 632246020), (4, 316123010), (5, 252898408), (7, 180641720), (8, 158061505), (10, 126449204), (14, 90320860), (20, 63224602), (28, 45160430), (35, 36128344), (40, 31612301), (49, 25805960), (56, 22580215), (70, 18064172), (98, 12902980), (140, 9032086), (196, 6451490), (245, 5161192), (280, 4516043), (392, 3225745), (490, 2580596), (980, 1290298), (1960, 645149)]