19259600

素因数分解:

$2^4\times 5^2\times {\mathrm{89}}^1\times {\mathrm{541}}^1$

素因数の和:648

約数の個数: 60

約数和(自身を含む): 46877580

約数和(自身を除く): 27617980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 89, 100, 178, 200, 356, 400, 445, 541, 712, 890, 1082, 1424, 1780, 2164, 2225, 2705, 3560, 4328, 4450, 5410, 7120, 8656, 8900, 10820, 13525, 17800, 21640, 27050, 35600, 43280, 48149, 54100, 96298, 108200, 192596, 216400, 240745, 385192, 481490, 770384, 962980, 1203725, 1925960, 2407450, 3851920, 4814900, 9629800, 19259600]

約数ペア:

[(1, 19259600), (2, 9629800), (4, 4814900), (5, 3851920), (8, 2407450), (10, 1925960), (16, 1203725), (20, 962980), (25, 770384), (40, 481490), (50, 385192), (80, 240745), (89, 216400), (100, 192596), (178, 108200), (200, 96298), (356, 54100), (400, 48149), (445, 43280), (541, 35600), (712, 27050), (890, 21640), (1082, 17800), (1424, 13525), (1780, 10820), (2164, 8900), (2225, 8656), (2705, 7120), (3560, 5410), (4328, 4450)]