72821515

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:343

約数の個数: 32

約数和(自身を含む): 96969600

約数和(自身を除く): 24148085

約数列:

[1, 5, 13, 65, 73, 103, 149, 365, 515, 745, 949, 1339, 1937, 4745, 6695, 7519, 9685, 10877, 15347, 37595, 54385, 76735, 97747, 141401, 199511, 488735, 707005, 997555, 1120331, 5601655, 14564303, 72821515]

約数ペア:

[(1, 72821515), (5, 14564303), (13, 5601655), (65, 1120331), (73, 997555), (103, 707005), (149, 488735), (365, 199511), (515, 141401), (745, 97747), (949, 76735), (1339, 54385), (1937, 37595), (4745, 15347), (6695, 10877), (7519, 9685)]