20856180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11213}}^1$

素因数の和:11256

約数の個数: 48

約数和(自身を含む): 60286464

約数和(自身を除く): 39430284

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 1860, 11213, 22426, 33639, 44852, 56065, 67278, 112130, 134556, 168195, 224260, 336390, 347603, 672780, 695206, 1042809, 1390412, 1738015, 2085618, 3476030, 4171236, 5214045, 6952060, 10428090, 20856180]

約数ペア:

[(1, 20856180), (2, 10428090), (3, 6952060), (4, 5214045), (5, 4171236), (6, 3476030), (10, 2085618), (12, 1738015), (15, 1390412), (20, 1042809), (30, 695206), (31, 672780), (60, 347603), (62, 336390), (93, 224260), (124, 168195), (155, 134556), (186, 112130), (310, 67278), (372, 56065), (465, 44852), (620, 33639), (930, 22426), (1860, 11213)]