18654580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7013}}^1$

素因数の和:7048

約数の個数: 48

約数和(自身を含む): 47134080

約数和(自身を除く): 28479500

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 7013, 14026, 28052, 35065, 49091, 70130, 98182, 133247, 140260, 196364, 245455, 266494, 490910, 532988, 666235, 932729, 981820, 1332470, 1865458, 2664940, 3730916, 4663645, 9327290, 18654580]

約数ペア:

[(1, 18654580), (2, 9327290), (4, 4663645), (5, 3730916), (7, 2664940), (10, 1865458), (14, 1332470), (19, 981820), (20, 932729), (28, 666235), (35, 532988), (38, 490910), (70, 266494), (76, 245455), (95, 196364), (133, 140260), (140, 133247), (190, 98182), (266, 70130), (380, 49091), (532, 35065), (665, 28052), (1330, 14026), (2660, 7013)]