20378490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1669}}^1$

素因数の和:1727

約数の個数: 64

約数和(自身を含む): 54829440

約数和(自身を除く): 34450950

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 37, 55, 66, 74, 110, 111, 165, 185, 222, 330, 370, 407, 555, 814, 1110, 1221, 1669, 2035, 2442, 3338, 4070, 5007, 6105, 8345, 10014, 12210, 16690, 18359, 25035, 36718, 50070, 55077, 61753, 91795, 110154, 123506, 183590, 185259, 275385, 308765, 370518, 550770, 617530, 679283, 926295, 1358566, 1852590, 2037849, 3396415, 4075698, 6792830, 10189245, 20378490]

約数ペア:

[(1, 20378490), (2, 10189245), (3, 6792830), (5, 4075698), (6, 3396415), (10, 2037849), (11, 1852590), (15, 1358566), (22, 926295), (30, 679283), (33, 617530), (37, 550770), (55, 370518), (66, 308765), (74, 275385), (110, 185259), (111, 183590), (165, 123506), (185, 110154), (222, 91795), (330, 61753), (370, 55077), (407, 50070), (555, 36718), (814, 25035), (1110, 18359), (1221, 16690), (1669, 12210), (2035, 10014), (2442, 8345), (3338, 6105), (4070, 5007)]