20080502

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{251}}^1$

素因数の和:464

約数の個数: 32

約数和(自身を含む): 34673184

約数和(自身を除く): 14592682

約数列:

[1, 2, 13, 17, 26, 34, 181, 221, 251, 362, 442, 502, 2353, 3077, 3263, 4267, 4706, 6154, 6526, 8534, 40001, 45431, 55471, 80002, 90862, 110942, 590603, 772327, 1181206, 1544654, 10040251, 20080502]

約数ペア:

[(1, 20080502), (2, 10040251), (13, 1544654), (17, 1181206), (26, 772327), (34, 590603), (181, 110942), (221, 90862), (251, 80002), (362, 55471), (442, 45431), (502, 40001), (2353, 8534), (3077, 6526), (3263, 6154), (4267, 4706)]