645781630

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1447}}^1\times {\mathrm{3433}}^1$

素因数の和:4900

約数の個数: 32

約数和(自身を含む): 1253052864

約数和(自身を除く): 607271234

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 1447, 2894, 3433, 6866, 7235, 14470, 17165, 18811, 34330, 37622, 44629, 89258, 94055, 188110, 223145, 446290, 4967551, 9935102, 24837755, 49675510, 64578163, 129156326, 322890815, 645781630]

約数ペア:

[(1, 645781630), (2, 322890815), (5, 129156326), (10, 64578163), (13, 49675510), (26, 24837755), (65, 9935102), (130, 4967551), (1447, 446290), (2894, 223145), (3433, 188110), (6866, 94055), (7235, 89258), (14470, 44629), (17165, 37622), (18811, 34330)]