71678945

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 95504640

約数和(自身を除く): 23825695

約数列:

[1, 5, 13, 65, 67, 109, 151, 335, 545, 755, 871, 1417, 1963, 4355, 7085, 7303, 9815, 10117, 16459, 36515, 50585, 82295, 94939, 131521, 213967, 474695, 657605, 1069835, 1102753, 5513765, 14335789, 71678945]

約数ペア:

[(1, 71678945), (5, 14335789), (13, 5513765), (65, 1102753), (67, 1069835), (109, 657605), (151, 474695), (335, 213967), (545, 131521), (755, 94939), (871, 82295), (1417, 50585), (1963, 36515), (4355, 16459), (7085, 10117), (7303, 9815)]