400291255

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{12391}}^1$

素因数の和:12487

約数の個数: 32

約数和(自身を含む): 599574528

約数和(自身を除く): 199283273

約数列:

[1, 5, 7, 13, 35, 65, 71, 91, 355, 455, 497, 923, 2485, 4615, 6461, 12391, 32305, 61955, 86737, 161083, 433685, 805415, 879761, 1127581, 4398805, 5637905, 6158327, 11436893, 30791635, 57184465, 80058251, 400291255]

約数ペア:

[(1, 400291255), (5, 80058251), (7, 57184465), (13, 30791635), (35, 11436893), (65, 6158327), (71, 5637905), (91, 4398805), (355, 1127581), (455, 879761), (497, 805415), (923, 433685), (2485, 161083), (4615, 86737), (6461, 61955), (12391, 32305)]