19992712

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1277}}^1$

素因数の和:1405

約数の個数: 32

約数和(自身を含む): 39873600

約数和(自身を除く): 19880888

約数列:

[1, 2, 4, 8, 19, 38, 76, 103, 152, 206, 412, 824, 1277, 1957, 2554, 3914, 5108, 7828, 10216, 15656, 24263, 48526, 97052, 131531, 194104, 263062, 526124, 1052248, 2499089, 4998178, 9996356, 19992712]

約数ペア:

[(1, 19992712), (2, 9996356), (4, 4998178), (8, 2499089), (19, 1052248), (38, 526124), (76, 263062), (103, 194104), (152, 131531), (206, 97052), (412, 48526), (824, 24263), (1277, 15656), (1957, 10216), (2554, 7828), (3914, 5108)]