19733680

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{2543}}^1$

素因数の和:2653

約数の個数: 40

約数和(自身を含む): 46372032

約数和(自身を除く): 26638352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 2543, 3880, 5086, 7760, 10172, 12715, 20344, 25430, 40688, 50860, 101720, 203440, 246671, 493342, 986684, 1233355, 1973368, 2466710, 3946736, 4933420, 9866840, 19733680]

約数ペア:

[(1, 19733680), (2, 9866840), (4, 4933420), (5, 3946736), (8, 2466710), (10, 1973368), (16, 1233355), (20, 986684), (40, 493342), (80, 246671), (97, 203440), (194, 101720), (388, 50860), (485, 40688), (776, 25430), (970, 20344), (1552, 12715), (1940, 10172), (2543, 7760), (3880, 5086)]