40389265

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{383}}^1$

素因数の和:549

約数の個数: 32

約数和(自身を含む): 58392576

約数和(自身を除く): 18003311

約数列:

[1, 5, 7, 23, 35, 115, 131, 161, 383, 655, 805, 917, 1915, 2681, 3013, 4585, 8809, 13405, 15065, 21091, 44045, 50173, 61663, 105455, 250865, 308315, 351211, 1153979, 1756055, 5769895, 8077853, 40389265]

約数ペア:

[(1, 40389265), (5, 8077853), (7, 5769895), (23, 1756055), (35, 1153979), (115, 351211), (131, 308315), (161, 250865), (383, 105455), (655, 61663), (805, 50173), (917, 44045), (1915, 21091), (2681, 15065), (3013, 13405), (4585, 8809)]