66738256

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{499}}^1\times {\mathrm{643}}^1$

素因数の和:1163

約数の個数: 40

約数和(自身を含む): 139748000

約数和(自身を除く): 73009744

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 499, 643, 998, 1286, 1996, 2572, 3992, 5144, 6487, 7984, 8359, 10288, 12974, 16718, 25948, 33436, 51896, 66872, 103792, 133744, 320857, 641714, 1283428, 2566856, 4171141, 5133712, 8342282, 16684564, 33369128, 66738256]

約数ペア:

[(1, 66738256), (2, 33369128), (4, 16684564), (8, 8342282), (13, 5133712), (16, 4171141), (26, 2566856), (52, 1283428), (104, 641714), (208, 320857), (499, 133744), (643, 103792), (998, 66872), (1286, 51896), (1996, 33436), (2572, 25948), (3992, 16718), (5144, 12974), (6487, 10288), (7984, 8359)]