215494175

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{293}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 302147328

約数和(自身を除く): 86653153

約数列:

[1, 5, 13, 25, 31, 65, 73, 155, 293, 325, 365, 403, 775, 949, 1465, 1825, 2015, 2263, 3809, 4745, 7325, 9083, 10075, 11315, 19045, 21389, 23725, 29419, 45415, 56575, 95225, 106945, 118079, 147095, 227075, 278057, 534725, 590395, 663059, 735475, 1390285, 2951975, 3315295, 6951425, 8619767, 16576475, 43098835, 215494175]

約数ペア:

[(1, 215494175), (5, 43098835), (13, 16576475), (25, 8619767), (31, 6951425), (65, 3315295), (73, 2951975), (155, 1390285), (293, 735475), (325, 663059), (365, 590395), (403, 534725), (775, 278057), (949, 227075), (1465, 147095), (1825, 118079), (2015, 106945), (2263, 95225), (3809, 56575), (4745, 45415), (7325, 29419), (9083, 23725), (10075, 21389), (11315, 19045)]