20246440

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{373}}^1$

素因数の和:466

約数の個数: 64

約数和(自身を含む): 48470400

約数和(自身を除く): 28223960

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 59, 92, 115, 118, 184, 230, 236, 295, 373, 460, 472, 590, 746, 920, 1180, 1357, 1492, 1865, 2360, 2714, 2984, 3730, 5428, 6785, 7460, 8579, 10856, 13570, 14920, 17158, 22007, 27140, 34316, 42895, 44014, 54280, 68632, 85790, 88028, 110035, 171580, 176056, 220070, 343160, 440140, 506161, 880280, 1012322, 2024644, 2530805, 4049288, 5061610, 10123220, 20246440]

約数ペア:

[(1, 20246440), (2, 10123220), (4, 5061610), (5, 4049288), (8, 2530805), (10, 2024644), (20, 1012322), (23, 880280), (40, 506161), (46, 440140), (59, 343160), (92, 220070), (115, 176056), (118, 171580), (184, 110035), (230, 88028), (236, 85790), (295, 68632), (373, 54280), (460, 44014), (472, 42895), (590, 34316), (746, 27140), (920, 22007), (1180, 17158), (1357, 14920), (1492, 13570), (1865, 10856), (2360, 8579), (2714, 7460), (2984, 6785), (3730, 5428)]