208320680

素因数分解:

$2^3\times 5^1\times {\mathrm{1907}}^1\times {\mathrm{2731}}^1$

素因数の和:4649

約数の個数: 32

約数和(自身を含む): 469139040

約数和(自身を除く): 260818360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1907, 2731, 3814, 5462, 7628, 9535, 10924, 13655, 15256, 19070, 21848, 27310, 38140, 54620, 76280, 109240, 5208017, 10416034, 20832068, 26040085, 41664136, 52080170, 104160340, 208320680]

約数ペア:

[(1, 208320680), (2, 104160340), (4, 52080170), (5, 41664136), (8, 26040085), (10, 20832068), (20, 10416034), (40, 5208017), (1907, 109240), (2731, 76280), (3814, 54620), (5462, 38140), (7628, 27310), (9535, 21848), (10924, 19070), (13655, 15256)]