80665788

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{18119}}^1$

素因数の和:18186

約数の個数: 48

約数和(自身を含む): 219179520

約数和(自身を除く): 138513732

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 53, 84, 106, 159, 212, 318, 371, 636, 742, 1113, 1484, 2226, 4452, 18119, 36238, 54357, 72476, 108714, 126833, 217428, 253666, 380499, 507332, 760998, 960307, 1521996, 1920614, 2880921, 3841228, 5761842, 6722149, 11523684, 13444298, 20166447, 26888596, 40332894, 80665788]

約数ペア:

[(1, 80665788), (2, 40332894), (3, 26888596), (4, 20166447), (6, 13444298), (7, 11523684), (12, 6722149), (14, 5761842), (21, 3841228), (28, 2880921), (42, 1920614), (53, 1521996), (84, 960307), (106, 760998), (159, 507332), (212, 380499), (318, 253666), (371, 217428), (636, 126833), (742, 108714), (1113, 72476), (1484, 54357), (2226, 36238), (4452, 18119)]