204401405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^2\times {\mathrm{397}}^1$

素因数の和:593

約数の個数: 24

約数和(自身を含む): 267823752

約数和(自身を除く): 63422347

約数列:

[1, 5, 13, 65, 89, 397, 445, 1157, 1985, 5161, 5785, 7921, 25805, 35333, 39605, 102973, 176665, 459329, 514865, 2296645, 3144637, 15723185, 40880281, 204401405]

約数ペア:

[(1, 204401405), (5, 40880281), (13, 15723185), (65, 3144637), (89, 2296645), (397, 514865), (445, 459329), (1157, 176665), (1985, 102973), (5161, 39605), (5785, 35333), (7921, 25805)]