20197508725

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{215843}}^1$

素因数の和:216069

約数の個数: 24

約数和(自身を含む): 26497009440

約数和(自身を除く): 6299500715

約数列:

[1, 5, 19, 25, 95, 197, 475, 985, 3743, 4925, 18715, 93575, 215843, 1079215, 4101017, 5396075, 20505085, 42521071, 102525425, 212605355, 807900349, 1063026775, 4039501745, 20197508725]

約数ペア:

[(1, 20197508725), (5, 4039501745), (19, 1063026775), (25, 807900349), (95, 212605355), (197, 102525425), (475, 42521071), (985, 20505085), (3743, 5396075), (4925, 4101017), (18715, 1079215), (93575, 215843)]