19623620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1021}}^1$

素因数の和:1092

約数の個数: 36

約数和(自身を含む): 42623532

約数和(自身を除く): 22999912

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 961, 1021, 1922, 2042, 3844, 4084, 4805, 5105, 9610, 10210, 19220, 20420, 31651, 63302, 126604, 158255, 316510, 633020, 981181, 1962362, 3924724, 4905905, 9811810, 19623620]

約数ペア:

[(1, 19623620), (2, 9811810), (4, 4905905), (5, 3924724), (10, 1962362), (20, 981181), (31, 633020), (62, 316510), (124, 158255), (155, 126604), (310, 63302), (620, 31651), (961, 20420), (1021, 19220), (1922, 10210), (2042, 9610), (3844, 5105), (4084, 4805)]