638049325

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{18191}}^1$

素因数の和:18285

約数の個数: 24

約数和(自身を含む): 839160576

約数和(自身を除く): 201111251

約数列:

[1, 5, 23, 25, 61, 115, 305, 575, 1403, 1525, 7015, 18191, 35075, 90955, 418393, 454775, 1109651, 2091965, 5548255, 10459825, 25521973, 27741275, 127609865, 638049325]

約数ペア:

[(1, 638049325), (5, 127609865), (23, 27741275), (25, 25521973), (61, 10459825), (115, 5548255), (305, 2091965), (575, 1109651), (1403, 454775), (1525, 418393), (7015, 90955), (18191, 35075)]