19649120

素因数分解:

$2^5\times 5^1\times {\mathrm{227}}^1\times {\mathrm{541}}^1$

素因数の和:783

約数の個数: 48

約数和(自身を含む): 46711728

約数和(自身を除く): 27062608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 227, 454, 541, 908, 1082, 1135, 1816, 2164, 2270, 2705, 3632, 4328, 4540, 5410, 7264, 8656, 9080, 10820, 17312, 18160, 21640, 36320, 43280, 86560, 122807, 245614, 491228, 614035, 982456, 1228070, 1964912, 2456140, 3929824, 4912280, 9824560, 19649120]

約数ペア:

[(1, 19649120), (2, 9824560), (4, 4912280), (5, 3929824), (8, 2456140), (10, 1964912), (16, 1228070), (20, 982456), (32, 614035), (40, 491228), (80, 245614), (160, 122807), (227, 86560), (454, 43280), (541, 36320), (908, 21640), (1082, 18160), (1135, 17312), (1816, 10820), (2164, 9080), (2270, 8656), (2705, 7264), (3632, 5410), (4328, 4540)]