20085077840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13213867}}^1$

素因数の和:13213899

約数の個数: 40

約数和(自身を含む): 49155588960

約数和(自身を除く): 29070511120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 13213867, 26427734, 52855468, 66069335, 105710936, 132138670, 211421872, 251063473, 264277340, 502126946, 528554680, 1004253892, 1057109360, 1255317365, 2008507784, 2510634730, 4017015568, 5021269460, 10042538920, 20085077840]

約数ペア:

[(1, 20085077840), (2, 10042538920), (4, 5021269460), (5, 4017015568), (8, 2510634730), (10, 2008507784), (16, 1255317365), (19, 1057109360), (20, 1004253892), (38, 528554680), (40, 502126946), (76, 264277340), (80, 251063473), (95, 211421872), (152, 132138670), (190, 105710936), (304, 66069335), (380, 52855468), (760, 26427734), (1520, 13213867)]