12440680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{283}}^1$

素因数の和:458

約数の個数: 64

約数和(自身を含む): 32307840

約数和(自身を除く): 19867160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 157, 280, 283, 314, 566, 628, 785, 1099, 1132, 1256, 1415, 1570, 1981, 2198, 2264, 2830, 3140, 3962, 4396, 5495, 5660, 6280, 7924, 8792, 9905, 10990, 11320, 15848, 19810, 21980, 39620, 43960, 44431, 79240, 88862, 177724, 222155, 311017, 355448, 444310, 622034, 888620, 1244068, 1555085, 1777240, 2488136, 3110170, 6220340, 12440680]

約数ペア:

[(1, 12440680), (2, 6220340), (4, 3110170), (5, 2488136), (7, 1777240), (8, 1555085), (10, 1244068), (14, 888620), (20, 622034), (28, 444310), (35, 355448), (40, 311017), (56, 222155), (70, 177724), (140, 88862), (157, 79240), (280, 44431), (283, 43960), (314, 39620), (566, 21980), (628, 19810), (785, 15848), (1099, 11320), (1132, 10990), (1256, 9905), (1415, 8792), (1570, 7924), (1981, 6280), (2198, 5660), (2264, 5495), (2830, 4396), (3140, 3962)]