71921330

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{42557}}^1$

素因数の和:42590

約数の個数: 24

約数和(自身を含む): 140186052

約数和(自身を除く): 68264722

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 42557, 85114, 212785, 425570, 553241, 1106482, 2766205, 5532410, 7192133, 14384266, 35960665, 71921330]

約数ペア:

[(1, 71921330), (2, 35960665), (5, 14384266), (10, 7192133), (13, 5532410), (26, 2766205), (65, 1106482), (130, 553241), (169, 425570), (338, 212785), (845, 85114), (1690, 42557)]