72281807

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:363

約数の個数: 24

約数和(自身を含む): 83931120

約数和(自身を除く): 11649313

約数列:

[1, 13, 17, 139, 169, 181, 221, 1807, 2353, 2363, 2873, 3077, 23491, 25159, 30589, 30719, 40001, 327067, 399347, 427703, 520013, 4251871, 5560139, 72281807]

約数ペア:

[(1, 72281807), (13, 5560139), (17, 4251871), (139, 520013), (169, 427703), (181, 399347), (221, 327067), (1807, 40001), (2353, 30719), (2363, 30589), (2873, 25159), (3077, 23491)]