205516220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{112921}}^1$

素因数の和:112950

約数の個数: 48

約数和(自身を含む): 531185088

約数和(自身を除く): 325668868

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 112921, 225842, 451684, 564605, 790447, 1129210, 1467973, 1580894, 2258420, 2935946, 3161788, 3952235, 5871892, 7339865, 7904470, 10275811, 14679730, 15808940, 20551622, 29359460, 41103244, 51379055, 102758110, 205516220]

約数ペア:

[(1, 205516220), (2, 102758110), (4, 51379055), (5, 41103244), (7, 29359460), (10, 20551622), (13, 15808940), (14, 14679730), (20, 10275811), (26, 7904470), (28, 7339865), (35, 5871892), (52, 3952235), (65, 3161788), (70, 2935946), (91, 2258420), (130, 1580894), (140, 1467973), (182, 1129210), (260, 790447), (364, 564605), (455, 451684), (910, 225842), (1820, 112921)]